13123120013239 has 2 divisors, whose sum is σ = 13123120013240. Its totient is φ = 13123120013238.

The previous prime is 13123120013183. The next prime is 13123120013261. The reversal of 13123120013239 is 93231002132131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13123120013239 - 2²³ = 13123111624631 is a prime.

It is a super-2 number, since 2×13123120013239² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13123120013239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123120013299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561560006619 + 6561560006620.

It is an arithmetic number, because the mean of its divisors is an integer number (6561560006620).

Almost surely, 2^{13123120013239} is an apocalyptic number.

13123120013239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123120013239 is an equidigital number, since it uses as much as digits as its factorization.

13123120013239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 13123120013239 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twenty million, thirteen thousand, two hundred thirty-nine".