11191099 has 2 divisors, whose sum is σ = 11191100. Its totient is φ = 11191098.

The previous prime is 11191043. The next prime is 11191153. The reversal of 11191099 is 99019111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11191099 - 2¹¹ = 11189051 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11191099.

It is not a weakly prime, because it can be changed into another prime (11191009) 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, 5595549 + 5595550.

It is an arithmetic number, because the mean of its divisors is an integer number (5595550).

Almost surely, 2^11191099 is an apocalyptic number.

11191099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11191099 is an equidigital number, since it uses as much as digits as its factorization.

11191099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 11191099 is about 3345.3100005829. The cubic root of 11191099 is about 223.6785021706.

The spelling of 11191099 in words is "eleven million, one hundred ninety-one thousand, ninety-nine".