111042243 has 24 divisors (see below), whose sum is σ = 173671680. Its totient is φ = 67962240.

The previous prime is 111042209. The next prime is 111042263. The reversal of 111042243 is 342240111.

It is a de Polignac number, because none of the positive numbers 2^k-111042243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111042263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19863 + ... + 24831.

It is an arithmetic number, because the mean of its divisors is an integer number (7236320).

Almost surely, 2^111042243 is an apocalyptic number.

111042243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111042243 is a deficient number, since it is larger than the sum of its proper divisors (62629437).

111042243 is a wasteful number, since it uses less digits than its factorization.

111042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 111042243 is about 10537.6583262127. The cubic root of 111042243 is about 480.6505112374.

Adding to 111042243 its reverse (342240111), we get a palindrome (453282354).

The spelling of 111042243 in words is "one hundred eleven million, forty-two thousand, two hundred forty-three".