331031130120 has 48 divisors (see below), whose sum is σ = 1075851174060. Its totient is φ = 88274967936.

The previous prime is 331031130109. The next prime is 331031130151. The reversal of 331031130120 is 21031130133.

It is a happy number.

331031130120 is a `hidden beast` number, since 3 + 31 + 0 + 311 + 301 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 330664101156 + 367028964 = 575034^2 + 19158^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 331031130093 and 331031130102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459765099 + ... + 459765818.

Almost surely, 2^331031130120 is an apocalyptic number.

331031130120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331031130120 is an abundant number, since it is smaller than the sum of its proper divisors (744820043940).

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

331031130120 is a wasteful number, since it uses less digits than its factorization.

331031130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919530934 (or 919530927 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 331031130120 its reverse (21031130133), we get a palindrome (352062260253).

The spelling of 331031130120 in words is "three hundred thirty-one billion, thirty-one million, one hundred thirty thousand, one hundred twenty".