331213232312 has 16 divisors (see below), whose sum is σ = 622037910840. Its totient is φ = 165336456096.

The previous prime is 331213232309. The next prime is 331213232323. The reversal of 331213232312 is 213232312133.

It is a congruent number.

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, 33764798 + ... + 33774605.

Almost surely, 2^331213232312 is an apocalyptic number.

It is an amenable number.

331213232312 is a deficient number, since it is larger than the sum of its proper divisors (290824678528).

331213232312 is a wasteful number, since it uses less digits than its factorization.

331213232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67540022 (or 67540018 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

Adding to 331213232312 its reverse (213232312133), we get a palindrome (544445544445).

The spelling of 331213232312 in words is "three hundred thirty-one billion, two hundred thirteen million, two hundred thirty-two thousand, three hundred twelve".