331000012 has 48 divisors (see below), whose sum is σ = 676021248. Its totient is φ = 138882240.

The previous prime is 331000009. The next prime is 331000037. The reversal of 331000012 is 210000133.

It is a super-2 number, since 2×331000012² = 219122015888000288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331498 + ... + 332494.

It is an arithmetic number, because the mean of its divisors is an integer number (14083776).

Almost surely, 2^331000012 is an apocalyptic number.

It is an amenable number.

331000012 is an abundant number, since it is smaller than the sum of its proper divisors (345021236).

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

331000012 is a wasteful number, since it uses less digits than its factorization.

331000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 331000012 is about 18193.4057284501. The cubic root of 331000012 is about 691.7396500203.

Adding to 331000012 its reverse (210000133), we get a palindrome (541000145).

The spelling of 331000012 in words is "three hundred thirty-one million, twelve", and thus it is an aban number.