11689000931 has 2 divisors, whose sum is σ = 11689000932. Its totient is φ = 11689000930.

The previous prime is 11689000927. The next prime is 11689000943. The reversal of 11689000931 is 13900098611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11689000931 - 2² = 11689000927 is a prime.

It is a super-2 number, since 2×11689000931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11689000991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844500465 + 5844500466.

It is an arithmetic number, because the mean of its divisors is an integer number (5844500466).

Almost surely, 2^11689000931 is an apocalyptic number.

11689000931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11689000931 is an equidigital number, since it uses as much as digits as its factorization.

11689000931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 11689000931 in words is "eleven billion, six hundred eighty-nine million, nine hundred thirty-one", and thus it is an aban number.