1003103domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrime numbers such that each digit is the sum of two or more other digits.at n=21A203592a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=3.at n=19A242905Prime numbersat n=78740