U+20100

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U+20100 is not a valid unicode character.
Encodings
HTML Entity (decimal) 𠄀
HTML Entity (hex) 𠄀
How to type in Microsoft Windows Alt +20100
UTF-8 (hex) 0xF0 0xA0 0x84 0x80 (f0a08480)
UTF-8 (binary) 11110000:10100000:10000100:10000000
UTF-16 (hex) 0xD840 0xDD00 (d840dd00)
UTF-16 (decimal) 55,360 56,576
UTF-32 (hex) 0x00020100 (20100)
UTF-32 (decimal) 131,328
C/C++/Java source code "\uD840\uDD00"
Python source code u"\U00020100"
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Java Data
string.toUpperCase() 𠄀
string.toLowerCase() 𠄀
Character.UnicodeBlock CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
Character.charCount() 2
Character.getDirectionality() DIRECTIONALITY_LEFT_TO_RIGHT [0]
Character.getNumericValue() -1
Character.getType() 5
Character.isDefined() Yes
Character.isDigit() No
Character.isIdentifierIgnorable() No
Character.isISOControl() No
Character.isJavaIdentifierPart() Yes
Character.isJavaIdentifierStart() Yes
Character.isLetter() Yes
Character.isLetterOrDigit() Yes
Character.isLowerCase() No
Character.isMirrored() No
Character.isSpaceChar() No
Character.isSupplementaryCodePoint() Yes
Character.isTitleCase() No
Character.isUnicodeIdentifierPart() Yes
Character.isUnicodeIdentifierStart() Yes
Character.isUpperCase() No
Character.isValidCodePoint() Yes
Character.isWhitespace() No