80111107 has 4 divisors (see below), whose sum is σ = 81974200. Its totient is φ = 78248016.

The previous prime is 80111071. The next prime is 80111111. The reversal of 80111107 is 70111108.

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-80111107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80111167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931482 + ... + 931567.

It is an arithmetic number, because the mean of its divisors is an integer number (20493550).

Almost surely, 2^80111107 is an apocalyptic number.

80111107 is a deficient number, since it is larger than the sum of its proper divisors (1863093).

80111107 is a wasteful number, since it uses less digits than its factorization.

80111107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863092.

The product of its (nonzero) digits is 56, while the sum is 19.

The square root of 80111107 is about 8950.4808250730. The cubic root of 80111107 is about 431.0863230430.

Subtracting from 80111107 its reverse (70111108), we obtain a palindrome (9999999).

The spelling of 80111107 in words is "eighty million, one hundred eleven thousand, one hundred seven".