111818099 has 2 divisors, whose sum is σ = 111818100. Its totient is φ = 111818098.

The previous prime is 111818071. The next prime is 111818117. The reversal of 111818099 is 990818111.

It is a strong prime.

It is an emirp because it is prime and its reverse (990818111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111818099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111818999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55909049 + 55909050.

It is an arithmetic number, because the mean of its divisors is an integer number (55909050).

Almost surely, 2^111818099 is an apocalyptic number.

111818099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111818099 is an equidigital number, since it uses as much as digits as its factorization.

111818099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 38.

The square root of 111818099 is about 10574.4077375520. The cubic root of 111818099 is about 481.7673547137.

The spelling of 111818099 in words is "one hundred eleven million, eight hundred eighteen thousand, ninety-nine".