This character is a Other Letter and is mainly used in the Lydian script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from right to left. When changing direction it is not mirrored. The word that U+10936 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Lydian script was used to write the Lydian language. Like other scripts of Anatolia in the Iron Age, the Lydian alphabet is based on the Phoenician alphabet. It is related to the East Greek alphabet, but it has unique features.
The first modern codification of the Lydian alphabet was made by Roberto Gusmani in 1964, in a combined lexicon, grammar, and text collection.
Early Lydian texts were written either from left to right or from right to left. Later texts all run from right to left. One surviving text is in the bi-directional boustrophedon manner. Spaces separate words except in one text that uses dots instead. Lydian uniquely features a quotation mark in the shape of a triangle.
Representations
System
Representation (click value to copy)
NΒΊ
67894
UTF-8
F0 90 A4 B6
UTF-16
D8 02 DD 36
UTF-32
00 01 09 36
URL-Quoted
%F0%90%A4%B6
HTML hex reference
𐤶
Wrong windows-1252 Mojibake
ð€¢
Encoding: GB18030 (hex bytes)
90 31 EE 38
RFC 5137
\u'10936'
Bash and Zsh inside echo -e
\U00010936
C and C++
\U00010936
C#
\U00010936
CSS
\010936
Excel
=UNICHAR(67894)
Go
\U00010936
JavaScript
\uD802\uDD36
Modern JavaScript since ES6
\u{10936}
JSON
\uD802\uDD36
Java
\uD802\uDD36
Lua
\u{10936}
Matlab
char(67894)
Perl
"\x{10936}"
PHP
\u{10936}
PostgreSQL
U&'\+010936'
PowerShell
`u{10936}
Python
\U00010936
Ruby
\u{10936}
Rust
\u{10936}
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