79011112111 has 4 divisors (see below), whose sum is σ = 79018458424. Its totient is φ = 79003765800.

The previous prime is 79011112099. The next prime is 79011112121. The reversal of 79011112111 is 11121111097.

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

It is a cyclic number.

It is not a de Polignac number, because 79011112111 - 2⁵ = 79011112079 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 (79011112121) 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, 3657000 + ... + 3678541.

It is an arithmetic number, because the mean of its divisors is an integer number (19754614606).

Almost surely, 2^79011112111 is an apocalyptic number.

79011112111 is a deficient number, since it is larger than the sum of its proper divisors (7346313).

79011112111 is a wasteful number, since it uses less digits than its factorization.

79011112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346312.

The product of its (nonzero) digits is 126, while the sum is 25.

The spelling of 79011112111 in words is "seventy-nine billion, eleven million, one hundred twelve thousand, one hundred eleven".