11099999087 has 2 divisors, whose sum is σ = 11099999088. Its totient is φ = 11099999086.

The previous prime is 11099999077. The next prime is 11099999089. The reversal of 11099999087 is 78099999011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11099999087 - 2⁸ = 11099998831 is a prime.

Together with 11099999089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11099999089) 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, 5549999543 + 5549999544.

It is an arithmetic number, because the mean of its divisors is an integer number (5549999544).

Almost surely, 2^11099999087 is an apocalyptic number.

11099999087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11099999087 is an equidigital number, since it uses as much as digits as its factorization.

11099999087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 62.

The spelling of 11099999087 in words is "eleven billion, ninety-nine million, nine hundred ninety-nine thousand, eighty-seven".