12311139923 has 2 divisors, whose sum is σ = 12311139924. Its totient is φ = 12311139922.

The previous prime is 12311139899. The next prime is 12311139959. The reversal of 12311139923 is 32993111321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12311139923 - 2⁶ = 12311139859 is a prime.

It is not a weakly prime, because it can be changed into another prime (12311135923) 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, 6155569961 + 6155569962.

It is an arithmetic number, because the mean of its divisors is an integer number (6155569962).

Almost surely, 2^12311139923 is an apocalyptic number.

12311139923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311139923 is an equidigital number, since it uses as much as digits as its factorization.

12311139923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The spelling of 12311139923 in words is "twelve billion, three hundred eleven million, one hundred thirty-nine thousand, nine hundred twenty-three".