This character is a Other Letter and is mainly used in the Hangul script.
The glyph is a compatibility version of the glyph Hangul Choseong Rieul. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+3139 offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Rieul (sign: ㄹ; Korean: 리을, rieul) is a consonant of the Korean alphabet. Rieul is pronounced [ɾ] at the beginning of a word and [l] at the end of a word. For example: 러시아 reosia ("Russia"), 별 byeol ("star").
Representations
System
Representation (click value to copy)
Nº
12601
UTF-8
E3 84 B9
UTF-16
31 39
UTF-32
00 00 31 39
URL-Quoted
%E3%84%B9
HTML hex reference
ㄹ
Wrong windows-1252 Mojibake
ㄹ
Encoding: CP949 (hex bytes)
A4 A9
Encoding: EUC_KR (hex bytes)
A4 A9
Encoding: GB18030 (hex bytes)
81 39 AA 31
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 28 43 24 29 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 24 29 0F
Encoding: JOHAB (hex bytes)
9C 41
Adobe Glyph List
rieulkorean
RFC 5137
\u'3139'
Bash and Zsh inside echo -e
\u3139
C and C++
\u3139
C#
\u3139
CSS
\003139
Excel
=UNICHAR(12601)
Go
\u3139
JavaScript
\u3139
Modern JavaScript since ES6
\u{3139}
JSON
\u3139
Java
\u3139
Lua
\u{3139}
Matlab
char(12601)
Perl
"\x{3139}"
PHP
\u{3139}
PostgreSQL
U&'\3139'
PowerShell
`u{3139}
Python
\u3139
Ruby
\u{3139}
Rust
\u{3139}
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