12080520139 has 2 divisors, whose sum is σ = 12080520140. Its totient is φ = 12080520138.

The previous prime is 12080520103. The next prime is 12080520149. The reversal of 12080520139 is 93102508021.

It is a strong prime.

It is an emirp because it is prime and its reverse (93102508021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12080520139 - 2¹⁷ = 12080389067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12080520139.

It is not a weakly prime, because it can be changed into another prime (12080520149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6040260069 + 6040260070.

It is an arithmetic number, because the mean of its divisors is an integer number (6040260070).

Almost surely, 2^12080520139 is an apocalyptic number.

12080520139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12080520139 is an equidigital number, since it uses as much as digits as its factorization.

12080520139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 12080520139 in words is "twelve billion, eighty million, five hundred twenty thousand, one hundred thirty-nine".