111100311111 has 8 divisors (see below), whose sum is σ = 148142182000. Its totient is φ = 74062657152.

The previous prime is 111100311103. The next prime is 111100311173. The reversal of 111100311111 is 111113001111.

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

It is not a de Polignac number, because 111100311111 - 2³ = 111100311103 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 (111100311811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992236 + ... + 1098513.

It is an arithmetic number, because the mean of its divisors is an integer number (18517772750).

Almost surely, 2^111100311111 is an apocalyptic number.

111100311111 is a deficient number, since it is larger than the sum of its proper divisors (37041870889).

111100311111 is a wasteful number, since it uses less digits than its factorization.

111100311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108465.

The product of its (nonzero) digits is 3, while the sum is 12.

Adding to 111100311111 its reverse (111113001111), we get a palindrome (222213312222).

The spelling of 111100311111 in words is "one hundred eleven billion, one hundred million, three hundred eleven thousand, one hundred eleven".