111001111099 has 2 divisors, whose sum is σ = 111001111100. Its totient is φ = 111001111098.

The previous prime is 111001110977. The next prime is 111001111103. The reversal of 111001111099 is 990111100111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111001111099 - 2²¹ = 110999013947 is a prime.

It is not a weakly prime, because it can be changed into another prime (111001111799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500555549 + 55500555550.

It is an arithmetic number, because the mean of its divisors is an integer number (55500555550).

Almost surely, 2^111001111099 is an apocalyptic number.

111001111099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001111099 is an equidigital number, since it uses as much as digits as its factorization.

111001111099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 25.

The spelling of 111001111099 in words is "one hundred eleven billion, one million, one hundred eleven thousand, ninety-nine".