12111089131 has 2 divisors, whose sum is σ = 12111089132. Its totient is φ = 12111089130.

The previous prime is 12111089099. The next prime is 12111089147. The reversal of 12111089131 is 13198011121.

It is a strong prime.

It is an emirp because it is prime and its reverse (13198011121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12111089131 - 2⁵ = 12111089099 is a prime.

It is a super-2 number, since 2×12111089131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12111089131.

It is not a weakly prime, because it can be changed into another prime (12111089161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055544565 + 6055544566.

It is an arithmetic number, because the mean of its divisors is an integer number (6055544566).

Almost surely, 2^12111089131 is an apocalyptic number.

12111089131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111089131 is an equidigital number, since it uses as much as digits as its factorization.

12111089131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 12111089131 in words is "twelve billion, one hundred eleven million, eighty-nine thousand, one hundred thirty-one".