13312012 has 12 divisors (see below), whose sum is σ = 26624080. Its totient is φ = 5705136.

The previous prime is 13312001. The next prime is 13312021. The reversal of 13312012 is 21021331.

13312012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13311983 and 13312001.

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, 237687 + ... + 237742.

Almost surely, 2^13312012 is an apocalyptic number.

It is an amenable number.

13312012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13312012 is a wasteful number, since it uses less digits than its factorization.

13312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475440 (or 475438 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13312012 is about 3648.5630048007. The cubic root of 13312012 is about 236.9997566864. Note that the first 3 decimals are identical.

Adding to 13312012 its reverse (21021331), we get a palindrome (34333343).

The spelling of 13312012 in words is "thirteen million, three hundred twelve thousand, twelve".