Does the JSON number type permit me to store the number 123,456,789,098,765,432,123,456,789,098,765,432,123? When I read it in with a parser, what integer valu

Does the JSON number type permit me to store the number 123,456,789,098,765,432,123,456,789,098,765,432,123? When I read it in with a parser, what integer value will my code see? This is not an academic question: large integers are common, for example, as cryptographic keys.