499943domain: NPropertiesPrimalityPrimeyesAppears in sequencesLesser of a pair of not necessarily distinct closest primes that add up to 10^n.at n=5A124450Numbers k such that k and k^2 use only the digits 0, 2, 3, 4 and 9.at n=41A136886Lesser of a pair of distinct closest n-digit primes that add up to 10^n.at n=5A137611Prime numbersat n=41534