111068401979 has 4 divisors (see below), whose sum is σ = 111112287720. Its totient is φ = 111024516240.

The previous prime is 111068401967. The next prime is 111068401991. The reversal of 111068401979 is 979104860111.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (111068401967) and next prime (111068401991).

It is a cyclic number.

It is not a de Polignac number, because 111068401979 - 2²⁸ = 110799966523 is a prime.

It is a super-3 number, since 3×111068401979³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111068401949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21939074 + ... + 21944135.

It is an arithmetic number, because the mean of its divisors is an integer number (27778071930).

Almost surely, 2^111068401979 is an apocalyptic number.

111068401979 is a deficient number, since it is larger than the sum of its proper divisors (43885741).

111068401979 is an equidigital number, since it uses as much as digits as its factorization.

111068401979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43885740.

The product of its (nonzero) digits is 108864, while the sum is 47.

The spelling of 111068401979 in words is "one hundred eleven billion, sixty-eight million, four hundred one thousand, nine hundred seventy-nine".