13123515059 has 2 divisors, whose sum is σ = 13123515060. Its totient is φ = 13123515058.

The previous prime is 13123514977. The next prime is 13123515091. The reversal of 13123515059 is 95051532131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123515059 is a prime.

It is not a weakly prime, because it can be changed into another prime (13123515259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561757529 + 6561757530.

It is an arithmetic number, because the mean of its divisors is an integer number (6561757530).

Almost surely, 2^13123515059 is an apocalyptic number.

13123515059 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123515059 is an equidigital number, since it uses as much as digits as its factorization.

13123515059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 35.

The spelling of 13123515059 in words is "thirteen billion, one hundred twenty-three million, five hundred fifteen thousand, fifty-nine".