31312212002232 has 64 divisors (see below), whose sum is σ = 89486720094720. Its totient is φ = 8944020563328.

The previous prime is 31312212002213. The next prime is 31312212002273. The reversal of 31312212002232 is 23220021221313.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23578063 + ... + 24870654.

It is an arithmetic number, because the mean of its divisors is an integer number (1398230001480).

Almost surely, 2^{31312212002232} is an apocalyptic number.

It is an amenable number.

31312212002232 is an abundant number, since it is smaller than the sum of its proper divisors (58174508092488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31312212002232 is a wasteful number, since it uses less digits than its factorization.

31312212002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48452580 (or 48452576 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31312212002232 its reverse (23220021221313), we get a palindrome (54532233223545).

The spelling of 31312212002232 in words is "thirty-one trillion, three hundred twelve billion, two hundred twelve million, two thousand, two hundred thirty-two".