13608942931 has 2 divisors, whose sum is σ = 13608942932. Its totient is φ = 13608942930.

The previous prime is 13608942889. The next prime is 13608942959. The reversal of 13608942931 is 13924980631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13608942931 - 2¹⁵ = 13608910163 is a prime.

It is a super-2 number, since 2×13608942931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13608942631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6804471465 + 6804471466.

It is an arithmetic number, because the mean of its divisors is an integer number (6804471466).

Almost surely, 2^13608942931 is an apocalyptic number.

13608942931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13608942931 is an equidigital number, since it uses as much as digits as its factorization.

13608942931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 13608942931 in words is "thirteen billion, six hundred eight million, nine hundred forty-two thousand, nine hundred thirty-one".