111110899 has 2 divisors, whose sum is σ = 111110900. Its totient is φ = 111110898.

The previous prime is 111110873. The next prime is 111110921. The reversal of 111110899 is 998011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111110899 - 2¹⁵ = 111078131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111110899.

It is not a weakly prime, because it can be changed into another prime (111110869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555449 + 55555450.

It is an arithmetic number, because the mean of its divisors is an integer number (55555450).

Almost surely, 2^111110899 is an apocalyptic number.

111110899 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110899 is an equidigital number, since it uses as much as digits as its factorization.

111110899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 31.

The square root of 111110899 is about 10540.9154725764. The cubic root of 111110899 is about 480.7495508518.

The spelling of 111110899 in words is "one hundred eleven million, one hundred ten thousand, eight hundred ninety-nine".