13013431391 has 8 divisors (see below), whose sum is σ = 13097994000. Its totient is φ = 12929008320.

The previous prime is 13013431369. The next prime is 13013431427. The reversal of 13013431391 is 19313431031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13013431391 - 2²⁶ = 12946322527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013431351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155600 + ... + 224138.

It is an arithmetic number, because the mean of its divisors is an integer number (1637249250).

Almost surely, 2^13013431391 is an apocalyptic number.

13013431391 is a deficient number, since it is larger than the sum of its proper divisors (84562609).

13013431391 is a wasteful number, since it uses less digits than its factorization.

13013431391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69769.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 13013431391 in words is "thirteen billion, thirteen million, four hundred thirty-one thousand, three hundred ninety-one".