111109901111 has 8 divisors (see below), whose sum is σ = 123019918464. Its totient is φ = 99501403320.

The previous prime is 111109901059. The next prime is 111109901153.

111109901111 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-111109901111 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 (111109901711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75379115 + ... + 75380588.

It is an arithmetic number, because the mean of its divisors is an integer number (15377489808).

Almost surely, 2^111109901111 is an apocalyptic number.

111109901111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111109901111 is a deficient number, since it is larger than the sum of its proper divisors (11910017353).

111109901111 is a wasteful number, since it uses less digits than its factorization.

111109901111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150759781.

The product of its (nonzero) digits is 81, while the sum is 26.

The spelling of 111109901111 in words is "one hundred eleven billion, one hundred nine million, nine hundred one thousand, one hundred eleven".