13123222139 has 2 divisors, whose sum is σ = 13123222140. Its totient is φ = 13123222138.

The previous prime is 13123222121. The next prime is 13123222181. The reversal of 13123222139 is 93122232131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13123222139 - 2²⁰ = 13122173563 is a prime.

It is not a weakly prime, because it can be changed into another prime (13123222339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561611069 + 6561611070.

It is an arithmetic number, because the mean of its divisors is an integer number (6561611070).

Almost surely, 2^13123222139 is an apocalyptic number.

13123222139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123222139 is an equidigital number, since it uses as much as digits as its factorization.

13123222139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The spelling of 13123222139 in words is "thirteen billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred thirty-nine".