31033130120 has 16 divisors (see below), whose sum is σ = 69824542860. Its totient is φ = 12413252032.

The previous prime is 31033130119. The next prime is 31033130159. The reversal of 31033130120 is 2103133013.

It can be written as a sum of positive squares in 2 ways, for example, as 24873705796 + 6159424324 = 157714^2 + 78482^2 .

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, 387914087 + ... + 387914166.

Almost surely, 2^31033130120 is an apocalyptic number.

It is an amenable number.

31033130120 is an abundant number, since it is smaller than the sum of its proper divisors (38791412740).

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

31033130120 is a wasteful number, since it uses less digits than its factorization.

31033130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775828264 (or 775828260 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31033130120 its reverse (2103133013), we get a palindrome (33136263133).

The spelling of 31033130120 in words is "thirty-one billion, thirty-three million, one hundred thirty thousand, one hundred twenty".