111110119979 has 4 divisors (see below), whose sum is σ = 111144747720. Its totient is φ = 111075492240.

The previous prime is 111110119909. The next prime is 111110119999. The reversal of 111110119979 is 979911011111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110119979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110119909) 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, 17309057 + ... + 17315474.

It is an arithmetic number, because the mean of its divisors is an integer number (27786186930).

Almost surely, 2^111110119979 is an apocalyptic number.

111110119979 is a deficient number, since it is larger than the sum of its proper divisors (34627741).

111110119979 is an equidigital number, since it uses as much as digits as its factorization.

111110119979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34627740.

The product of its (nonzero) digits is 5103, while the sum is 41.

The spelling of 111110119979 in words is "one hundred eleven billion, one hundred ten million, one hundred nineteen thousand, nine hundred seventy-nine".