12311140091 has 2 divisors, whose sum is σ = 12311140092. Its totient is φ = 12311140090.

The previous prime is 12311140027. The next prime is 12311140111. The reversal of 12311140091 is 19004111321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311140091 - 2⁶ = 12311140027 is a prime.

It is not a weakly prime, because it can be changed into another prime (12311140021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155570045 + 6155570046.

It is an arithmetic number, because the mean of its divisors is an integer number (6155570046).

Almost surely, 2^12311140091 is an apocalyptic number.

12311140091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311140091 is an equidigital number, since it uses as much as digits as its factorization.

12311140091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 12311140091 in words is "twelve billion, three hundred eleven million, one hundred forty thousand, ninety-one".