Big Numbers Demo - The standard HTML input has no limitation when xs:decimal or xs:integer is used however HTML5 type="number" may not handle more than 15 ciphers depending on browser implementation. Note that for a xs:decimal type="number" cannot be used in any case since separators are localized. Required [element], Single Occurrence, with Simple Type [inline-Form-Decimal] localName is [Decimal] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-Integer] localName is [Integer] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-IntegerHtml5Text] localName is [IntegerHtml5Text] without namespace Big Numbers Demo - The standard HTML input has no limitation when xs:decimal or xs:integer is used however HTML5 type="number" may not handle more than 15 ciphers depending on browser implementation. Note that for a xs:decimal type="number" cannot be used in any case since separators are localized.