31312504434 has 32 divisors (see below), whose sum is σ = 62930514816. Its totient is φ = 10386696320.

The previous prime is 31312504403. The next prime is 31312504439. The reversal of 31312504434 is 43440521313.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31312504439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137724 + ... + 1164920.

It is an arithmetic number, because the mean of its divisors is an integer number (1966578588).

Almost surely, 2^31312504434 is an apocalyptic number.

31312504434 is an abundant number, since it is smaller than the sum of its proper divisors (31618010382).

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

31312504434 is a wasteful number, since it uses less digits than its factorization.

31312504434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28130.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 31312504434 in words is "thirty-one billion, three hundred twelve million, five hundred four thousand, four hundred thirty-four".