13431013439 has 2 divisors, whose sum is σ = 13431013440. Its totient is φ = 13431013438.

The previous prime is 13431013381. The next prime is 13431013457. The reversal of 13431013439 is 93431013431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13431013439 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13431013499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715506719 + 6715506720.

It is an arithmetic number, because the mean of its divisors is an integer number (6715506720).

Almost surely, 2^13431013439 is an apocalyptic number.

13431013439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431013439 is an equidigital number, since it uses as much as digits as its factorization.

13431013439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 13431013439 in words is "thirteen billion, four hundred thirty-one million, thirteen thousand, four hundred thirty-nine".