11111099599 has 2 divisors, whose sum is σ = 11111099600. Its totient is φ = 11111099598.

The previous prime is 11111099561. The next prime is 11111099603. The reversal of 11111099599 is 99599011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111099599 - 2¹¹ = 11111097551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111099099) 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, 5555549799 + 5555549800.

It is an arithmetic number, because the mean of its divisors is an integer number (5555549800).

Almost surely, 2^11111099599 is an apocalyptic number.

11111099599 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111099599 is an equidigital number, since it uses as much as digits as its factorization.

11111099599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32805, while the sum is 46.

The spelling of 11111099599 in words is "eleven billion, one hundred eleven million, ninety-nine thousand, five hundred ninety-nine".