331133012 has 24 divisors (see below), whose sum is σ = 663566400. Its totient is φ = 141635520.

The previous prime is 331132993. The next prime is 331133027. The reversal of 331133012 is 210331133.

It is a congruent number.

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, 3239 + ... + 25937.

It is an arithmetic number, because the mean of its divisors is an integer number (27648600).

Almost surely, 2^331133012 is an apocalyptic number.

It is an amenable number.

331133012 is an abundant number, since it is smaller than the sum of its proper divisors (332433388).

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

331133012 is a wasteful number, since it uses less digits than its factorization.

331133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23231 (or 23229 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 331133012 is about 18197.0605318551. The cubic root of 331133012 is about 691.8322875333.

Adding to 331133012 its reverse (210331133), we get a palindrome (541464145).

The spelling of 331133012 in words is "three hundred thirty-one million, one hundred thirty-three thousand, twelve".