917281domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that concatenation of n and its 10's complement is a palindrome.at n=28A109625Numbers k such that concatenation of k and its 10's complement is a palindromic prime.at n=7A109627Inverse permutation to sequence A083872.at n=28A119628Prime numbersat n=72534