This character is a Other Letter and is mainly used in the Egyptian Hieroglyphs script.
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+131B1 forms with similar adjacent characters prevents a line break inside it.
The Unikemet database provides additional information about this hieroglyph. It is described there as βA branch, horizontally written.β.
The Wikipedia has the following information about this codepoint:
The ancient Egyptian Branch hieroglyph, also called a Stick, is a member of the trees and plants hieroglyphs.
The branch is an Egyptian language biliteral with the value (kh)t, (khet)-(αΈ«t); it is an ideogram-(determinative), for wood, tree, and the linear measure (=100 cubits). The hieroglyph is described as a branch without leaves.
Representations
System
Representation (click value to copy)
NΒΊ
78257
UTF-8
F0 93 86 B1
UTF-16
D8 0C DD B1
UTF-32
00 01 31 B1
URL-Quoted
%F0%93%86%B1
HTML hex reference
𓆱
Wrong windows-1252 Mojibake
Γ°ββ Β±
Encoding: GB18030 (hex bytes)
91 30 8D 31
RFC 5137
\u'131B1'
Bash and Zsh inside echo -e
\U000131B1
C and C++
\U000131B1
C#
\U000131B1
CSS
\0131B1
Excel
=UNICHAR(78257)
Go
\U000131B1
JavaScript
\uD80C\uDDB1
Modern JavaScript since ES6
\u{131b1}
JSON
\uD80C\uDDB1
Java
\uD80C\uDDB1
Lua
\u{131B1}
Matlab
char(78257)
Perl
"\x{131B1}"
PHP
\u{131b1}
PostgreSQL
U&'\+0131B1'
PowerShell
`u{131B1}
Python
\U000131B1
Ruby
\u{131b1}
Rust
\u{131b1}
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