331130120 has 32 divisors (see below), whose sum is σ = 770736600. Its totient is φ = 127884288.

The previous prime is 331130101. The next prime is 331130171. The reversal of 331130120 is 21031133.

It can be written as a sum of positive squares in 4 ways, for example, as 291111844 + 40018276 = 17062^2 + 6326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331130095 and 331130104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141569 + ... + 143888.

Almost surely, 2^331130120 is an apocalyptic number.

It is an amenable number.

331130120 is an abundant number, since it is smaller than the sum of its proper divisors (439606480).

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

331130120 is a wasteful number, since it uses less digits than its factorization.

331130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285497 (or 285493 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331130120 is about 18196.9810682981. The cubic root of 331130120 is about 691.8302734537.

Adding to 331130120 its reverse (21031133), we get a palindrome (352161253).

The spelling of 331130120 in words is "three hundred thirty-one million, one hundred thirty thousand, one hundred twenty".