120031321131 has 12 divisors (see below), whose sum is σ = 178971432640. Its totient is φ = 77439561840.

The previous prime is 120031321127. The next prime is 120031321181. The reversal of 120031321131 is 131123130021.

120031321131 is a `hidden beast` number, since 1 + 200 + 313 + 21 + 131 = 666.

It is not a de Polignac number, because 120031321131 - 2² = 120031321127 is a prime.

It is a super-2 number, since 2×120031321131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120031321181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215109616 + ... + 215110173.

Almost surely, 2^120031321131 is an apocalyptic number.

120031321131 is a deficient number, since it is larger than the sum of its proper divisors (58940111509).

120031321131 is a wasteful number, since it uses less digits than its factorization.

120031321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430219826 (or 430219823 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 120031321131 its reverse (131123130021), we get a palindrome (251154451152).

The spelling of 120031321131 in words is "one hundred twenty billion, thirty-one million, three hundred twenty-one thousand, one hundred thirty-one".