111234243 has 4 divisors (see below), whose sum is σ = 148312328. Its totient is φ = 74156160.

The previous prime is 111234223. The next prime is 111234269. The reversal of 111234243 is 342432111.

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

It is not a de Polignac number, because 111234243 - 2⁸ = 111233987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111234223) 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, 18539038 + ... + 18539043.

It is an arithmetic number, because the mean of its divisors is an integer number (37078082).

Almost surely, 2^111234243 is an apocalyptic number.

111234243 is a deficient number, since it is larger than the sum of its proper divisors (37078085).

111234243 is an equidigital number, since it uses as much as digits as its factorization.

111234243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37078084.

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

The square root of 111234243 is about 10546.7645749775. The cubic root of 111234243 is about 480.9273781235.

Adding to 111234243 its reverse (342432111), we get a palindrome (453666354).

The spelling of 111234243 in words is "one hundred eleven million, two hundred thirty-four thousand, two hundred forty-three".