111443223 has 16 divisors (see below), whose sum is σ = 153021440. Its totient is φ = 72091296.

The previous prime is 111443221. The next prime is 111443231. The reversal of 111443223 is 322344111.

It is not a de Polignac number, because 111443223 - 2¹ = 111443221 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 111443223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111443221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47586 + ... + 49872.

It is an arithmetic number, because the mean of its divisors is an integer number (9563840).

Almost surely, 2^111443223 is an apocalyptic number.

111443223 is a deficient number, since it is larger than the sum of its proper divisors (41578217).

111443223 is a wasteful number, since it uses less digits than its factorization.

111443223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766.

The product of its digits is 576, while the sum is 21.

The square root of 111443223 is about 10556.6672297653. The cubic root of 111443223 is about 481.2283685560.

Adding to 111443223 its reverse (322344111), we get a palindrome (433787334).

The spelling of 111443223 in words is "one hundred eleven million, four hundred forty-three thousand, two hundred twenty-three".