111043055 has 4 divisors (see below), whose sum is σ = 133251672. Its totient is φ = 88834440.

The previous prime is 111043039. The next prime is 111043081. The reversal of 111043055 is 550340111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550340111 = 19 ⋅28965269.

It is not a de Polignac number, because 111043055 - 2⁴ = 111043039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11104301 + ... + 11104310.

It is an arithmetic number, because the mean of its divisors is an integer number (33312918).

Almost surely, 2^111043055 is an apocalyptic number.

111043055 is a deficient number, since it is larger than the sum of its proper divisors (22208617).

111043055 is an equidigital number, since it uses as much as digits as its factorization.

111043055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22208616.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 111043055 is about 10537.6968546263. The cubic root of 111043055 is about 480.6516828254.

Adding to 111043055 its reverse (550340111), we get a palindrome (661383166).

The spelling of 111043055 in words is "one hundred eleven million, forty-three thousand, fifty-five".