13311812 has 12 divisors (see below), whose sum is σ = 24099180. Its totient is φ = 6426336.

The previous prime is 13311787. The next prime is 13311817. The reversal of 13311812 is 21811331.

13311812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7474756 + 5837056 = 2734^2 + 2416^2 .

It is not an unprimeable number, because it can be changed into a prime (13311817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57263 + ... + 57494.

It is an arithmetic number, because the mean of its divisors is an integer number (2008265).

Almost surely, 2^13311812 is an apocalyptic number.

It is an amenable number.

13311812 is a deficient number, since it is larger than the sum of its proper divisors (10787368).

13311812 is a wasteful number, since it uses less digits than its factorization.

13311812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114790 (or 114788 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 13311812 is about 3648.5355966470. The cubic root of 13311812 is about 236.9985697837.

The spelling of 13311812 in words is "thirteen million, three hundred eleven thousand, eight hundred twelve".