12131113139 has 2 divisors, whose sum is σ = 12131113140. Its totient is φ = 12131113138.

The previous prime is 12131113121. The next prime is 12131113153. The reversal of 12131113139 is 93131113121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12131113139 - 2²⁰ = 12130064563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12131113109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065556569 + 6065556570.

It is an arithmetic number, because the mean of its divisors is an integer number (6065556570).

Almost surely, 2^12131113139 is an apocalyptic number.

12131113139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131113139 is an equidigital number, since it uses as much as digits as its factorization.

12131113139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 26.

The spelling of 12131113139 in words is "twelve billion, one hundred thirty-one million, one hundred thirteen thousand, one hundred thirty-nine".