12311139899 has 2 divisors, whose sum is σ = 12311139900. Its totient is φ = 12311139898.

The previous prime is 12311139859. The next prime is 12311139923. The reversal of 12311139899 is 99893111321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311139899 is a prime.

It is a super-2 number, since 2×12311139899² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12311139859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155569949 + 6155569950.

It is an arithmetic number, because the mean of its divisors is an integer number (6155569950).

Almost surely, 2^12311139899 is an apocalyptic number.

12311139899 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311139899 is an equidigital number, since it uses as much as digits as its factorization.

12311139899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 47.

The spelling of 12311139899 in words is "twelve billion, three hundred eleven million, one hundred thirty-nine thousand, eight hundred ninety-nine".