331211012 has 12 divisors (see below), whose sum is σ = 632312016. Its totient is φ = 150550440.

The previous prime is 331210993. The next prime is 331211033. The reversal of 331211012 is 210112133.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3763718 + ... + 3763805.

It is an arithmetic number, because the mean of its divisors is an integer number (52692668).

Almost surely, 2^331211012 is an apocalyptic number.

It is an amenable number.

331211012 is a deficient number, since it is larger than the sum of its proper divisors (301101004).

331211012 is a wasteful number, since it uses less digits than its factorization.

331211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527538 (or 7527536 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 331211012 is about 18199.2036089495. The cubic root of 331211012 is about 691.8866047613.

Adding to 331211012 its reverse (210112133), we get a palindrome (541323145).

The spelling of 331211012 in words is "three hundred thirty-one million, two hundred eleven thousand, twelve".