11699992531 has 2 divisors, whose sum is σ = 11699992532. Its totient is φ = 11699992530.

The previous prime is 11699992523. The next prime is 11699992537. The reversal of 11699992531 is 13529999611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11699992531 - 2³ = 11699992523 is a prime.

It is a super-2 number, since 2×11699992531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11699992537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5849996265 + 5849996266.

It is an arithmetic number, because the mean of its divisors is an integer number (5849996266).

Almost surely, 2^11699992531 is an apocalyptic number.

11699992531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11699992531 is an equidigital number, since it uses as much as digits as its factorization.

11699992531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 55.

The spelling of 11699992531 in words is "eleven billion, six hundred ninety-nine million, nine hundred ninety-two thousand, five hundred thirty-one".