31255004430312 has 64 divisors (see below), whose sum is σ = 84148649988480. Its totient is φ = 9616860310272.

The previous prime is 31255004430193. The next prime is 31255004430313. The reversal of 31255004430312 is 21303440055213.

It is not an unprimeable number, because it can be changed into a prime (31255004430313) 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, 70698178 + ... + 71138894.

It is an arithmetic number, because the mean of its divisors is an integer number (1314822656070).

Almost surely, 2^{31255004430312} is an apocalyptic number.

It is an amenable number.

31255004430312 is an abundant number, since it is smaller than the sum of its proper divisors (52893645558168).

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

31255004430312 is a wasteful number, since it uses less digits than its factorization.

31255004430312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668042 (or 668038 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 31255004430312 its reverse (21303440055213), we get a palindrome (52558444485525).

The spelling of 31255004430312 in words is "thirty-one trillion, two hundred fifty-five billion, four million, four hundred thirty thousand, three hundred twelve".