13911112117 has 4 divisors (see below), whose sum is σ = 15898413856. Its totient is φ = 11923810380.

The previous prime is 13911112069. The next prime is 13911112129. The reversal of 13911112117 is 71121111931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13911112117 - 2⁷ = 13911111989 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 (13911112177) 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, 993650859 + ... + 993650872.

It is an arithmetic number, because the mean of its divisors is an integer number (3974603464).

Almost surely, 2^13911112117 is an apocalyptic number.

It is an amenable number.

13911112117 is a deficient number, since it is larger than the sum of its proper divisors (1987301739).

13911112117 is an equidigital number, since it uses as much as digits as its factorization.

13911112117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987301738.

The product of its digits is 378, while the sum is 28.

The spelling of 13911112117 in words is "thirteen billion, nine hundred eleven million, one hundred twelve thousand, one hundred seventeen".