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+13281 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 fau00e7ade of a palace or tomb, with the top resembling two floating horizontal lines.β.
The Wikipedia has the following information about this codepoint:
In Egyptian hieroglyphs, a serekh is a rectangular enclosure representing the niched or gated façade of a palace surmounted by (usually) the Horus falcon, indicating that the text enclosed is a royal name. The serekh was the earliest convention used to set apart the royal name in ancient Egyptian iconography, predating the later and better known cartouche by four dynasties and five to seven hundred years.
Representations
System
Representation (click value to copy)
NΒΊ
78465
UTF-8
F0 93 8A 81
UTF-16
D8 0C DE 81
UTF-32
00 01 32 81
URL-Quoted
%F0%93%8A%81
HTML hex reference
𓊁
Wrong windows-1252 Mojibake
Γ°βΕ Β
Encoding: GB18030 (hex bytes)
91 30 A1 39
RFC 5137
\u'13281'
Bash and Zsh inside echo -e
\U00013281
C and C++
\U00013281
C#
\U00013281
CSS
\013281
Excel
=UNICHAR(78465)
Go
\U00013281
JavaScript
\uD80C\uDE81
Modern JavaScript since ES6
\u{13281}
JSON
\uD80C\uDE81
Java
\uD80C\uDE81
Lua
\u{13281}
Matlab
char(78465)
Perl
"\x{13281}"
PHP
\u{13281}
PostgreSQL
U&'\+013281'
PowerShell
`u{13281}
Python
\U00013281
Ruby
\u{13281}
Rust
\u{13281}
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