11609305931 has 2 divisors, whose sum is σ = 11609305932. Its totient is φ = 11609305930.

The previous prime is 11609305889. The next prime is 11609305943. The reversal of 11609305931 is 13950390611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11609305931 - 2¹⁰ = 11609304907 is a prime.

It is a super-2 number, since 2×11609305931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11609305031) 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, 5804652965 + 5804652966.

It is an arithmetic number, because the mean of its divisors is an integer number (5804652966).

Almost surely, 2^11609305931 is an apocalyptic number.

11609305931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11609305931 is an equidigital number, since it uses as much as digits as its factorization.

11609305931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 38.

The spelling of 11609305931 in words is "eleven billion, six hundred nine million, three hundred five thousand, nine hundred thirty-one".