11517698131 has 2 divisors, whose sum is σ = 11517698132. Its totient is φ = 11517698130.

The previous prime is 11517698099. The next prime is 11517698183. The reversal of 11517698131 is 13189671511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11517698131 - 2⁵ = 11517698099 is a prime.

It is a super-2 number, since 2×11517698131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11517698831) 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 as a sum of consecutive naturals, namely, 5758849065 + 5758849066.

It is an arithmetic number, because the mean of its divisors is an integer number (5758849066).

Almost surely, 2^11517698131 is an apocalyptic number.

11517698131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11517698131 is an equidigital number, since it uses as much as digits as its factorization.

11517698131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 43.

The spelling of 11517698131 in words is "eleven billion, five hundred seventeen million, six hundred ninety-eight thousand, one hundred thirty-one".