331130128 has 40 divisors (see below), whose sum is σ = 734748608. Its totient is φ = 141616512.

The previous prime is 331130101. The next prime is 331130171. The reversal of 331130128 is 821031133.

It is a junction number, because it is equal to n+sod(n) for n = 331130099 and 331130108.

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, 55750 + ... + 61402.

Almost surely, 2^331130128 is an apocalyptic number.

It is an amenable number.

331130128 is an abundant number, since it is smaller than the sum of its proper divisors (403618480).

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

331130128 is a wasteful number, since it uses less digits than its factorization.

331130128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191 (or 6185 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 331130128 is about 18196.9812881148. The cubic root of 331130128 is about 691.8302790251.

The spelling of 331130128 in words is "three hundred thirty-one million, one hundred thirty thousand, one hundred twenty-eight".