111114111 has 4 divisors (see below), whose sum is σ = 148152152. Its totient is φ = 74076072.

The previous prime is 111114067. The next prime is 111114119. The reversal of 111114111 is 111411111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111114111 - 2¹⁰ = 111113087 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 (111114119) 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, 18519016 + ... + 18519021.

It is an arithmetic number, because the mean of its divisors is an integer number (37038038).

Almost surely, 2^111114111 is an apocalyptic number.

111114111 is a deficient number, since it is larger than the sum of its proper divisors (37038041).

111114111 is an equidigital number, since it uses as much as digits as its factorization.

111114111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37038040.

The product of its digits is 4, while the sum is 12.

The square root of 111114111 is about 10541.0678301584. The cubic root of 111114111 is about 480.7541833187.

Adding to 111114111 its reverse (111411111), we get a palindrome (222525222).

It can be divided in two parts, 11 and 1114111, that multiplied together give a palindrome (12255221).

The spelling of 111114111 in words is "one hundred eleven million, one hundred fourteen thousand, one hundred eleven".