1001041domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes with arithmetic mean of digits = 1 (sum of digits = number of digits).at n=22A069710Minimal prime with n nonprime substrings (Version 2: substrings with leading zeros are counted as nonprime if the corresponding number is > 0).at n=22A213306Prime numbersat n=78578