13038112391 has 4 divisors (see below), whose sum is σ = 13038472392. Its totient is φ = 13037752392.

The previous prime is 13038112369. The next prime is 13038112397. The reversal of 13038112391 is 19321183031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13038112391 - 2²² = 13033918087 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 (13038112397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118721 + ... + 200426.

It is an arithmetic number, because the mean of its divisors is an integer number (3259618098).

Almost surely, 2^13038112391 is an apocalyptic number.

13038112391 is a deficient number, since it is larger than the sum of its proper divisors (360001).

13038112391 is an equidigital number, since it uses as much as digits as its factorization.

13038112391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360000.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 13038112391 in words is "thirteen billion, thirty-eight million, one hundred twelve thousand, three hundred ninety-one".