11289816931 has 2 divisors, whose sum is σ = 11289816932. Its totient is φ = 11289816930.

The previous prime is 11289816887. The next prime is 11289816959. The reversal of 11289816931 is 13961898211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11289816931 - 2¹⁷ = 11289685859 is a prime.

It is a super-2 number, since 2×11289816931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11289816991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5644908465 + 5644908466.

It is an arithmetic number, because the mean of its divisors is an integer number (5644908466).

Almost surely, 2^11289816931 is an apocalyptic number.

11289816931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11289816931 is an equidigital number, since it uses as much as digits as its factorization.

11289816931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 49.

The spelling of 11289816931 in words is "eleven billion, two hundred eighty-nine million, eight hundred sixteen thousand, nine hundred thirty-one".