312231131310232 has 16 divisors (see below), whose sum is σ = 619870628336760. Its totient is φ = 146932297087104.

The previous prime is 312231131310227. The next prime is 312231131310251. The reversal of 312231131310232 is 232013131132213.

It is a super-2 number, since 2×312231131310232² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312231131310232.

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, 1147908570858 + ... + 1147908571129.

Almost surely, 2^{312231131310232} is an apocalyptic number.

It is an amenable number.

312231131310232 is a deficient number, since it is larger than the sum of its proper divisors (307639497026528).

312231131310232 is a wasteful number, since it uses less digits than its factorization.

312231131310232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295817142010 (or 2295817142006 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 312231131310232 its reverse (232013131132213), we get a palindrome (544244262442445).

The spelling of 312231131310232 in words is "three hundred twelve trillion, two hundred thirty-one billion, one hundred thirty-one million, three hundred ten thousand, two hundred thirty-two".