3131132120 has 16 divisors (see below), whose sum is σ = 7045047360. Its totient is φ = 1252452832.

The previous prime is 3131132101. The next prime is 3131132149. The reversal of 3131132120 is 212311313.

It is a congruent number.

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, 39139112 + ... + 39139191.

It is an arithmetic number, because the mean of its divisors is an integer number (440315460).

Almost surely, 2^3131132120 is an apocalyptic number.

It is an amenable number.

3131132120 is an abundant number, since it is smaller than the sum of its proper divisors (3913915240).

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

3131132120 is a wasteful number, since it uses less digits than its factorization.

3131132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78278314 (or 78278310 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3131132120 is about 55956.5199060842. The cubic root of 3131132120 is about 1462.9645337602.

Adding to 3131132120 its reverse (212311313), we get a palindrome (3343443433).

The spelling of 3131132120 in words is "three billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty".