31311012102204 has 24 divisors (see below), whose sum is σ = 74256717227728. Its totient is φ = 10265905607040.

The previous prime is 31311012102193. The next prime is 31311012102217. The reversal of 31311012102204 is 40220121011313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21387302617 + ... + 21387304080.

Almost surely, 2^{31311012102204} is an apocalyptic number.

It is an amenable number.

31311012102204 is an abundant number, since it is smaller than the sum of its proper divisors (42945705125524).

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

31311012102204 is a wasteful number, since it uses less digits than its factorization.

31311012102204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42774606765 (or 42774606763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31311012102204 its reverse (40220121011313), we get a palindrome (71531133113517).

The spelling of 31311012102204 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred two thousand, two hundred four".