111044143 has 12 divisors (see below), whose sum is σ = 130630320. Its totient is φ = 94107552.

The previous prime is 111044137. The next prime is 111044177. The reversal of 111044143 is 341440111.

It is not a de Polignac number, because 111044143 - 2²¹ = 108946991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111044143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111044183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8371 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (10885860).

Almost surely, 2^111044143 is an apocalyptic number.

111044143 is a deficient number, since it is larger than the sum of its proper divisors (19586177).

111044143 is an equidigital number, since it uses as much as digits as its factorization.

111044143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25566 (or 25559 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 111044143 is about 10537.7484786837. The cubic root of 111044143 is about 480.6532526289.

Adding to 111044143 its reverse (341440111), we get a palindrome (452484254).

The spelling of 111044143 in words is "one hundred eleven million, forty-four thousand, one hundred forty-three".