13122043391 has 2 divisors, whose sum is σ = 13122043392. Its totient is φ = 13122043390.

The previous prime is 13122043381. The next prime is 13122043469. The reversal of 13122043391 is 19334022131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13122043391 - 2¹⁴ = 13122027007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122043381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561021695 + 6561021696.

It is an arithmetic number, because the mean of its divisors is an integer number (6561021696).

Almost surely, 2^13122043391 is an apocalyptic number.

13122043391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122043391 is an equidigital number, since it uses as much as digits as its factorization.

13122043391 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 13122043391 in words is "thirteen billion, one hundred twenty-two million, forty-three thousand, three hundred ninety-one".