999011111001101 has 16 divisors (see below), whose sum is σ = 1160313315715008. Its totient is φ = 850046385081600.

The previous prime is 999011111001061. The next prime is 999011111001139. The reversal of 999011111001101 is 101100111110999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999011111001101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999011111001401) 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, 14757715895 + ... + 14757783588.

It is an arithmetic number, because the mean of its divisors is an integer number (72519582232188).

Almost surely, 2^{999011111001101} is an apocalyptic number.

It is an amenable number.

999011111001101 is a deficient number, since it is larger than the sum of its proper divisors (161302204713907).

999011111001101 is a wasteful number, since it uses less digits than its factorization.

999011111001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29515499692.

The product of its (nonzero) digits is 729, while the sum is 35.

The spelling of 999011111001101 in words is "nine hundred ninety-nine trillion, eleven billion, one hundred eleven million, one thousand, one hundred one".