11111099 has 2 divisors, whose sum is σ = 11111100. Its totient is φ = 11111098.

The previous prime is 11111083. The next prime is 11111101. The reversal of 11111099 is 99011111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111099 - 2⁴ = 11111083 is a prime.

It is a Sophie Germain prime.

Together with 11111101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11111039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555549 + 5555550.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550).

Almost surely, 2^11111099 is an apocalyptic number.

11111099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111099 is an equidigital number, since it uses as much as digits as its factorization.

11111099 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 23.

The square root of 11111099 is about 3333.3315166662. The cubic root of 11111099 is about 223.1442356183.

The spelling of 11111099 in words is "eleven million, one hundred eleven thousand, ninety-nine".