13311813 has 8 divisors (see below), whose sum is σ = 17813376. Its totient is φ = 8842400.

The previous prime is 13311787. The next prime is 13311817. The reversal of 13311813 is 31811331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13311813 - 2⁹ = 13311301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13311813.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7053 + ... + 8738.

It is an arithmetic number, because the mean of its divisors is an integer number (2226672).

Almost surely, 2^13311813 is an apocalyptic number.

It is an amenable number.

13311813 is a deficient number, since it is larger than the sum of its proper divisors (4501563).

13311813 is a wasteful number, since it uses less digits than its factorization.

13311813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16075.

The product of its digits is 216, while the sum is 21.

The square root of 13311813 is about 3648.5357336882. The cubic root of 13311813 is about 236.9985757183.

The spelling of 13311813 in words is "thirteen million, three hundred eleven thousand, eight hundred thirteen".