31130122304 has 28 divisors (see below), whose sum is σ = 62320522044. Its totient is φ = 15427313664.

The previous prime is 31130122279. The next prime is 31130122321. The reversal of 31130122304 is 40322103113.

It can be written as a sum of positive squares in 2 ways, for example, as 11655361600 + 19474760704 = 107960^2 + 139552^2 .

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, 2145017 + ... + 2159480.

Almost surely, 2^31130122304 is an apocalyptic number.

It is an amenable number.

31130122304 is an abundant number, since it is smaller than the sum of its proper divisors (31190399740).

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

31130122304 is a wasteful number, since it uses less digits than its factorization.

31130122304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304622 (or 4304612 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31130122304 its reverse (40322103113), we get a palindrome (71452225417).

The spelling of 31130122304 in words is "thirty-one billion, one hundred thirty million, one hundred twenty-two thousand, three hundred four".