3131020133120 has 144 divisors (see below), whose sum is σ = 8402693973408. Its totient is φ = 1107780894720.

The previous prime is 3131020133093. The next prime is 3131020133149. The reversal of 3131020133120 is 213310201313.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3131020133092 and 3131020133101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484089 + ... + 3526008.

It is an arithmetic number, because the mean of its divisors is an integer number (58352041482).

Almost surely, 2^{3131020133120} is an apocalyptic number.

It is an amenable number.

3131020133120 is an abundant number, since it is smaller than the sum of its proper divisors (5271673840288).

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

3131020133120 is a wasteful number, since it uses less digits than its factorization.

3131020133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010166 (or 6010152 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 3131020133120 its reverse (213310201313), we get a palindrome (3344330334433).

The spelling of 3131020133120 in words is "three trillion, one hundred thirty-one billion, twenty million, one hundred thirty-three thousand, one hundred twenty".