111116791919 has 12 divisors (see below), whose sum is σ = 130081619304. Its totient is φ = 94636314864.

The previous prime is 111116791901. The next prime is 111116791931. The reversal of 111116791919 is 919197611111.

It is not a de Polignac number, because 111116791919 - 2²⁴ = 111100014703 is a prime.

It is a super-2 number, since 2×111116791919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111116491919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7214249 + ... + 7229634.

It is an arithmetic number, because the mean of its divisors is an integer number (10840134942).

Almost surely, 2^111116791919 is an apocalyptic number.

111116791919 is a deficient number, since it is larger than the sum of its proper divisors (18964827385).

111116791919 is a wasteful number, since it uses less digits than its factorization.

111116791919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14444054 (or 14444047 counting only the distinct ones).

The product of its digits is 30618, while the sum is 47.

The spelling of 111116791919 in words is "one hundred eleven billion, one hundred sixteen million, seven hundred ninety-one thousand, nine hundred nineteen".