80111100111 has 16 divisors (see below), whose sum is σ = 125051474688. Its totient is φ = 44661240000.

The previous prime is 80111100071. The next prime is 80111100119. The reversal of 80111100111 is 11100111108.

It is not a de Polignac number, because 80111100111 - 2⁹ = 80111099599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111100119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46521265 + ... + 46522986.

It is an arithmetic number, because the mean of its divisors is an integer number (7815717168).

Almost surely, 2^80111100111 is an apocalyptic number.

80111100111 is a deficient number, since it is larger than the sum of its proper divisors (44940374577).

80111100111 is a wasteful number, since it uses less digits than its factorization.

80111100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93044302.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 80111100111 its reverse (11100111108), we get a palindrome (91211211219).

The spelling of 80111100111 in words is "eighty billion, one hundred eleven million, one hundred thousand, one hundred eleven".