1011100000999 has 16 divisors (see below), whose sum is σ = 1179465009696. Its totient is φ = 856546816000.

The previous prime is 1011100000987. The next prime is 1011100001011. The reversal of 1011100000999 is 9990000011101.

It is an interprime number because it is at equal distance from previous prime (1011100000987) and next prime (1011100001011).

It is a cyclic number.

It is not a de Polignac number, because 1011100000999 - 2⁹ = 1011100000487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011100000999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011100000979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26748202 + ... + 26785975.

It is an arithmetic number, because the mean of its divisors is an integer number (73716563106).

Almost surely, 2^{1011100000999} is an apocalyptic number.

1011100000999 is a deficient number, since it is larger than the sum of its proper divisors (168365008697).

1011100000999 is a wasteful number, since it uses less digits than its factorization.

1011100000999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53534306.

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

The spelling of 1011100000999 in words is "one trillion, eleven billion, one hundred million, nine hundred ninety-nine", and thus it is an aban number.