999011011000001 has 4 divisors (see below), whose sum is σ = 999011078218692. Its totient is φ = 999010943781312.

The previous prime is 999011010999983. The next prime is 999011011000133. The reversal of 999011011000001 is 100000110110999.

999011011000001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 371356949349376 + 627654061650625 = 19270624^2 + 25053025^2 .

It is a cyclic number.

It is not a de Polignac number, because 999011011000001 - 2³⁸ = 998736133093057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999011011600001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335876 + ... + 44700501.

It is an arithmetic number, because the mean of its divisors is an integer number (249752769554673).

Almost surely, 2^{999011011000001} is an apocalyptic number.

It is an amenable number.

999011011000001 is a deficient number, since it is larger than the sum of its proper divisors (67218691).

999011011000001 is a wasteful number, since it uses less digits than its factorization.

999011011000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67218690.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 999011011000001 in words is "nine hundred ninety-nine trillion, eleven billion, eleven million, one", and thus it is an aban number.