13747111331 has 2 divisors, whose sum is σ = 13747111332. Its totient is φ = 13747111330.

The previous prime is 13747111321. The next prime is 13747111361. The reversal of 13747111331 is 13311174731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13747111331 is a prime.

It is a super-2 number, since 2×13747111331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13747111321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6873555665 + 6873555666.

It is an arithmetic number, because the mean of its divisors is an integer number (6873555666).

Almost surely, 2^13747111331 is an apocalyptic number.

13747111331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13747111331 is an equidigital number, since it uses as much as digits as its factorization.

13747111331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 32.

The spelling of 13747111331 in words is "thirteen billion, seven hundred forty-seven million, one hundred eleven thousand, three hundred thirty-one".