31013151301252 has 12 divisors (see below), whose sum is σ = 56144498045580. Its totient is φ = 14971866145376.

The previous prime is 31013151301241. The next prime is 31013151301267. The reversal of 31013151301252 is 25210315131013.

It can be written as a sum of positive squares in 2 ways, for example, as 12471308612676 + 18541842688576 = 3531474^2 + 4306024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31013151301252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133677376183 + ... + 133677376414.

It is an arithmetic number, because the mean of its divisors is an integer number (4678708170465).

Almost surely, 2^{31013151301252} is an apocalyptic number.

It is an amenable number.

31013151301252 is a deficient number, since it is larger than the sum of its proper divisors (25131346744328).

31013151301252 is a wasteful number, since it uses less digits than its factorization.

31013151301252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267354752630 (or 267354752628 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 31013151301252 its reverse (25210315131013), we get a palindrome (56223466432265).

The spelling of 31013151301252 in words is "thirty-one trillion, thirteen billion, one hundred fifty-one million, three hundred one thousand, two hundred fifty-two".