111112100112011 has 4 divisors (see below), whose sum is σ = 111112132684224. Its totient is φ = 111112067539800.

The previous prime is 111112100111953. The next prime is 111112100112049. The reversal of 111112100112011 is 110211001211111.

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 111112100112011 - 2¹⁸ = 111112099849867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112100172011) 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, 10479020 + ... + 18221801.

It is an arithmetic number, because the mean of its divisors is an integer number (27778033171056).

Almost surely, 2^{111112100112011} is an apocalyptic number.

111112100112011 is a deficient number, since it is larger than the sum of its proper divisors (32572213).

111112100112011 is an equidigital number, since it uses as much as digits as its factorization.

111112100112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32572212.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111112100112011 its reverse (110211001211111), we get a palindrome (221323101323122).

The spelling of 111112100112011 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred million, one hundred twelve thousand, eleven".