1111112111domain: NAppears in sequencesNumbers n such that s[n], p[n] and s[n]+p[n] are all prime numbers, where s[n] is the sum of digits of n and p[n] is the product of digits of n.at n=9A065439Smallest number appearing exactly n times in the concatenation of all integers from 1 to itself.at n=24A176779