331013000 has 32 divisors (see below), whose sum is σ = 774572760. Its totient is φ = 132404800.

The previous prime is 331012943. The next prime is 331013017. The reversal of 331013000 is 310133.

It can be written as a sum of positive squares in 4 ways, for example, as 112741924 + 218271076 = 10618^2 + 14774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164507 + ... + 166506.

Almost surely, 2^331013000 is an apocalyptic number.

It is an amenable number.

331013000 is an abundant number, since it is smaller than the sum of its proper divisors (443559760).

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

331013000 is a wasteful number, since it uses less digits than its factorization.

331013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331034 (or 331020 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 331013000 is about 18193.7626674638. The cubic root of 331013000 is about 691.7486975498.

Adding to 331013000 its reverse (310133), we get a palindrome (331323133).

The spelling of 331013000 in words is "three hundred thirty-one million, thirteen thousand".