110111209979 has 4 divisors (see below), whose sum is σ = 115906536840. Its totient is φ = 104315883120.

The previous prime is 110111209973. The next prime is 110111209987. The reversal of 110111209979 is 979902111011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979902111011 = 997 ⋅982850663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110111209979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110111209973) 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, 2897663402 + ... + 2897663439.

It is an arithmetic number, because the mean of its divisors is an integer number (28976634210).

Almost surely, 2^110111209979 is an apocalyptic number.

110111209979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

110111209979 is a deficient number, since it is larger than the sum of its proper divisors (5795326861).

110111209979 is an equidigital number, since it uses as much as digits as its factorization.

110111209979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795326860.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 110111209979 in words is "one hundred ten billion, one hundred eleven million, two hundred nine thousand, nine hundred seventy-nine".