112011111091 has 4 divisors (see below), whose sum is σ = 122193939384. Its totient is φ = 101828282800.

The previous prime is 112011111059. The next prime is 112011111101. The reversal of 112011111091 is 190111110211.

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 112011111091 - 2⁵ = 112011111059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112011111991) 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, 5091414130 + ... + 5091414151.

It is an arithmetic number, because the mean of its divisors is an integer number (30548484846).

Almost surely, 2^112011111091 is an apocalyptic number.

112011111091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112011111091 is a deficient number, since it is larger than the sum of its proper divisors (10182828293).

112011111091 is a wasteful number, since it uses less digits than its factorization.

112011111091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182828292.

The product of its (nonzero) digits is 18, while the sum is 19.

It can be divided in two parts, 11 and 2011111091, that added together give a palindrome (2011111102).

The spelling of 112011111091 in words is "one hundred twelve billion, eleven million, one hundred eleven thousand, ninety-one".