111113243 has 2 divisors, whose sum is σ = 111113244. Its totient is φ = 111113242.

The previous prime is 111113237. The next prime is 111113329. The reversal of 111113243 is 342311111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111113243 - 2⁸ = 111112987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111113213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556621 + 55556622.

It is an arithmetic number, because the mean of its divisors is an integer number (55556622).

Almost surely, 2^111113243 is an apocalyptic number.

111113243 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113243 is an equidigital number, since it uses as much as digits as its factorization.

111113243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 17.

The square root of 111113243 is about 10541.0266577786. The cubic root of 111113243 is about 480.7529314653.

Adding to 111113243 its reverse (342311111), we get a palindrome (453424354).

The spelling of 111113243 in words is "one hundred eleven million, one hundred thirteen thousand, two hundred forty-three".