This character is a Other Number and is mainly used in the Tamil script. It is also used in the script Grantha. The codepoint has the numeric value 100.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+0BF1 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The Tamil language has number words and dedicated symbols for them in the Tamil script.
Representations
System
Representation (click value to copy)
Nº
3057
UTF-8
E0 AF B1
UTF-16
0B F1
UTF-32
00 00 0B F1
URL-Quoted
%E0%AF%B1
HTML hex reference
௱
Wrong windows-1252 Mojibake
௱
Encoding: GB18030 (hex bytes)
81 32 9A 31
RFC 5137
\u'0BF1'
Bash and Zsh inside echo -e
\u0BF1
C and C++
\u0BF1
C#
\u0BF1
CSS
\000BF1
Excel
=UNICHAR(3057)
Go
\u0BF1
JavaScript
\u0BF1
Modern JavaScript since ES6
\u{bf1}
JSON
\u0BF1
Java
\u0BF1
Lua
\u{BF1}
Matlab
char(3057)
Perl
"\x{BF1}"
PHP
\u{bf1}
PostgreSQL
U&'\0BF1'
PowerShell
`u{BF1}
Python
\u0BF1
Ruby
\u{bf1}
Rust
\u{bf1}
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