31311312212332 has 6 divisors (see below), whose sum is σ = 54794796371588. Its totient is φ = 15655656106164.

The previous prime is 31311312212311. The next prime is 31311312212357. The reversal of 31311312212332 is 23321221311313.

It is a self number, because there is not a number n which added to its sum of digits gives 31311312212332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3913914026538 + ... + 3913914026545.

Almost surely, 2^{31311312212332} is an apocalyptic number.

It is an amenable number.

31311312212332 is a deficient number, since it is larger than the sum of its proper divisors (23483484159256).

31311312212332 is a wasteful number, since it uses less digits than its factorization.

31311312212332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827828053087 (or 7827828053085 counting only the distinct ones).

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

Adding to 31311312212332 its reverse (23321221311313), we get a palindrome (54632533523645).

The spelling of 31311312212332 in words is "thirty-one trillion, three hundred eleven billion, three hundred twelve million, two hundred twelve thousand, three hundred thirty-two".