Source: Noto CJK

U+32D1 Circled Katakana I

U+32D1 was added to Unicode in version 1.1 (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 composition of the glyph Katakana Letter I. It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+32D1 behaves as Ideographic regarding line breaks. It has type Other for sentence and Katakana for word breaks. The Grapheme Cluster Break is Any.

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 syllable 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 syllable 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‹‘

Elsewhere

Complete Record

Property	Value
Age	1.1 (1993)
Unicode Name	CIRCLED KATAKANA I
Unicode 1 Name	—
Block	Enclosed CJK Letters and Months
General Category	Other Symbol
Script	Katakana
Bidirectional Category	Left To Right
Combining Class	Not Reordered
Decomposition Type	Circle
Decomposition Mapping	Katakana Letter I
Lowercase	✘
Simple Lowercase Mapping	Circled Katakana I
Lowercase Mapping	Circled Katakana I
Uppercase	✘
Simple Uppercase Mapping	Circled Katakana I
Uppercase Mapping	Circled Katakana I
Simple Titlecase Mapping	Circled Katakana I
Titlecase Mapping	Circled Katakana I
Case Folding	Circled Katakana I
ASCII Hex Digit	✘
Alphabetic	✘
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✘
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✔
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Circled Katakana I
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✘
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Katakana Letter I
NFKC Quick Check	No
NFKD Quick Check	No
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Katakana
White Space	✘
XID Continue	✘
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Circled Katakana I
Bidi Paired Bracket Type	None
East Asian Width	Wide
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Ideographic
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Circled Katakana I
Script Extension
Vertical Orientation	U