31230373312 has 28 divisors (see below), whose sum is σ = 61999882096. Its totient is φ = 15608355840.

The previous prime is 31230373303. The next prime is 31230373387. The reversal of 31230373312 is 21337303213.

It is a congruent number.

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, 42328 + ... + 253480.

Almost surely, 2^31230373312 is an apocalyptic number.

31230373312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31230373312 is a deficient number, since it is larger than the sum of its proper divisors (30769508784).

31230373312 is a wasteful number, since it uses less digits than its factorization.

31230373312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213476 (or 213466 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 28.

Adding to 31230373312 its reverse (21337303213), we get a palindrome (52567676525).

The spelling of 31230373312 in words is "thirty-one billion, two hundred thirty million, three hundred seventy-three thousand, three hundred twelve".