Source: Noto CJK

U+32D1 Circled Katakana I

U+32D1 was added in Unicode version 1.1 in 1993. It belongs to the block U+3200 to U+32FF Enclosed CJK Letters and Months in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is mainly used in the Katakana script.

The glyph is a circle version of the glyph Katakana Letter I. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+32D1 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

I (い in hiragana or イ in katakana) is one of the Japanese kana each of which represents one mora. い is based on the sōsho style of the kanji character 以, and イ is from the radical (left part) of the kanji character 伊. In the modern Japanese system of sound order, it occupies the second position of the mora chart, between あ and う. Additionally, it is the first letter in Iroha, before ろ. Both represent the sound [i]. In the Ainu language, katakana イ is written as y in their Latin-based mora chart, and a small ィ after another katakana represents a diphthong.

Representations

System	Representation
Nº	13009
UTF-8	E3 8B 91
UTF-16	32 D1
UTF-32	00 00 32 D1
URL-Quoted	%E3%8B%91
HTML hex reference	㋑
Wrong windows-1252 Mojibake	ã‹‘
Encoding: EUC_JIS_2004 (hex bytes)	AC DC
Encoding: EUC_JISX0213 (hex bytes)	AC DC
Encoding: GB18030 (hex bytes)	81 39 D1 37
Encoding: ISO2022_JP_2004 (hex bytes)	1B 24 28 51 2C 5C 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)	1B 24 28 4F 2C 5C 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)	86 DA
Encoding: SHIFT_JISX0213 (hex bytes)	86 DA

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	CIRCLED KATAKANA I
Unicode 1 Name (na1)	—
Block (blk)	Enclosed CJK Letters and Months
General Category (gc)	Other Symbol
Script (sc)	Katakana
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	circle
Decomposition Mapping (dm)	Katakana Letter I
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Circled Katakana I
Lowercase Mapping (lc)	Circled Katakana I
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Circled Katakana I
Uppercase Mapping (uc)	Circled Katakana I
Simple Titlecase Mapping (stc)	Circled Katakana I
Titlecase Mapping (tc)	Circled Katakana I
Case Folding (cf)	Circled Katakana I
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✔
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Circled Katakana I
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Modifier Combining Mark (MCM)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Katakana Letter I
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Katakana Letter I
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Katakana
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Circled Katakana I
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Circled Katakana I
Script Extension (scx)
Vertical Orientation (vo)	U