12102312139 has 2 divisors, whose sum is σ = 12102312140. Its totient is φ = 12102312138.

The previous prime is 12102312077. The next prime is 12102312149. The reversal of 12102312139 is 93121320121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102312139 - 2⁷ = 12102312011 is a prime.

It is not a weakly prime, because it can be changed into another prime (12102312149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051156069 + 6051156070.

It is an arithmetic number, because the mean of its divisors is an integer number (6051156070).

Almost surely, 2^12102312139 is an apocalyptic number.

12102312139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102312139 is an equidigital number, since it uses as much as digits as its factorization.

12102312139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 12102312139 in words is "twelve billion, one hundred two million, three hundred twelve thousand, one hundred thirty-nine".