31331253030212 has 12 divisors (see below), whose sum is σ = 54830430648336. Its totient is φ = 15665415702120.

The previous prime is 31331253030199. The next prime is 31331253030263. The reversal of 31331253030212 is 21203035213313.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52368614 + ... + 52963517.

It is an arithmetic number, because the mean of its divisors is an integer number (4569202554028).

Almost surely, 2^{31331253030212} is an apocalyptic number.

It is an amenable number.

31331253030212 is a deficient number, since it is larger than the sum of its proper divisors (23499177618124).

31331253030212 is a wasteful number, since it uses less digits than its factorization.

31331253030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105406498 (or 105406496 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 31331253030212 its reverse (21203035213313), we get a palindrome (52534288243525).

The spelling of 31331253030212 in words is "thirty-one trillion, three hundred thirty-one billion, two hundred fifty-three million, thirty thousand, two hundred twelve".