331231323012 has 24 divisors (see below), whose sum is σ = 787455599616. Its totient is φ = 108327224928.

The previous prime is 331231322977. The next prime is 331231323043. The reversal of 331231323012 is 210323132133.

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, 260401348 + ... + 260402619.

It is an arithmetic number, because the mean of its divisors is an integer number (32810649984).

Almost surely, 2^331231323012 is an apocalyptic number.

It is an amenable number.

331231323012 is an abundant number, since it is smaller than the sum of its proper divisors (456224276604).

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

331231323012 is a wasteful number, since it uses less digits than its factorization.

331231323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520804027 (or 520804025 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331231323012 its reverse (210323132133), we get a palindrome (541554455145).

The spelling of 331231323012 in words is "three hundred thirty-one billion, two hundred thirty-one million, three hundred twenty-three thousand, twelve".