11011111110999 has 16 divisors (see below), whose sum is σ = 16319342991840. Its totient is φ = 7337777135040.

The previous prime is 11011111110997. The next prime is 11011111111067. The reversal of 11011111110999 is 99901111111011.

It is not a de Polignac number, because 11011111110999 - 2¹ = 11011111110997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011111110997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82254262 + ... + 82388019.

It is an arithmetic number, because the mean of its divisors is an integer number (1019958936990).

Almost surely, 2^{11011111110999} is an apocalyptic number.

11011111110999 is a deficient number, since it is larger than the sum of its proper divisors (5308231880841).

11011111110999 is a wasteful number, since it uses less digits than its factorization.

11011111110999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164644767 (or 164644761 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 36.

The spelling of 11011111110999 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred ten thousand, nine hundred ninety-nine".