Undefined Character (U+13BFF)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓯿` `𓯿`
UTF-8 Encoding:	`0xF0 0x93 0xAF 0xBF`
UTF-16 Encoding:	`0xD80E 0xDFFF`
UTF-32 Encoding:	`0x00013BFF`

References