111500243 has 2 divisors, whose sum is σ = 111500244. Its totient is φ = 111500242.

The previous prime is 111500201. The next prime is 111500267. The reversal of 111500243 is 342005111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111500243 - 2¹⁶ = 111434707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111500143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55750121 + 55750122.

It is an arithmetic number, because the mean of its divisors is an integer number (55750122).

Almost surely, 2^111500243 is an apocalyptic number.

111500243 is a deficient number, since it is larger than the sum of its proper divisors (1).

111500243 is an equidigital number, since it uses as much as digits as its factorization.

111500243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 111500243 is about 10559.3675473487. The cubic root of 111500243 is about 481.3104281685.

Adding to 111500243 its reverse (342005111), we get a palindrome (453505354).

The spelling of 111500243 in words is "one hundred eleven million, five hundred thousand, two hundred forty-three".