This number is a prime.
10010000 0000100000 1001086523
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The smallest prime that has all the letters used to spell integers (23) in English, short-scale system, except the impossible "Z" in any numeral greater than zero: ONE oCTILlion one SePtillion one QUADRillion one Billion one Million eiGHtY-siX thousand FiVe hundred tWenty-three (ONECT ILSPQ UADRB MGHYX FVW). [Rivera]