31230233312 has 12 divisors (see below), whose sum is σ = 61484521896. Its totient is φ = 15615116640.

The previous prime is 31230233263. The next prime is 31230233327. The reversal of 31230233312 is 21333203213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487972364 + ... + 487972427.

It is an arithmetic number, because the mean of its divisors is an integer number (5123710158).

Almost surely, 2^31230233312 is an apocalyptic number.

31230233312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31230233312 is a deficient number, since it is larger than the sum of its proper divisors (30254288584).

31230233312 is an equidigital number, since it uses as much as digits as its factorization.

31230233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975944801 (or 975944793 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31230233312 its reverse (21333203213), we get a palindrome (52563436525).

The spelling of 31230233312 in words is "thirty-one billion, two hundred thirty million, two hundred thirty-three thousand, three hundred twelve".