12031023139 has 2 divisors, whose sum is σ = 12031023140. Its totient is φ = 12031023138.

The previous prime is 12031023133. The next prime is 12031023163. The reversal of 12031023139 is 93132013021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12031023139 - 2¹⁵ = 12030990371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12031023133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015511569 + 6015511570.

It is an arithmetic number, because the mean of its divisors is an integer number (6015511570).

Almost surely, 2^12031023139 is an apocalyptic number.

12031023139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031023139 is an equidigital number, since it uses as much as digits as its factorization.

12031023139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 12031023139 in words is "twelve billion, thirty-one million, twenty-three thousand, one hundred thirty-nine".