1000111009999 has 4 divisors (see below), whose sum is σ = 1016506272520. Its totient is φ = 983715747480.

The previous prime is 1000111009991. The next prime is 1000111010033. The reversal of 1000111009999 is 9999001110001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000111009999 - 2³ = 1000111009991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111009991) 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, 8197631169 + ... + 8197631290.

It is an arithmetic number, because the mean of its divisors is an integer number (254126568130).

Almost surely, 2^{1000111009999} is an apocalyptic number.

1000111009999 is a deficient number, since it is larger than the sum of its proper divisors (16395262521).

1000111009999 is an equidigital number, since it uses as much as digits as its factorization.

1000111009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16395262520.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 1000111009999 in words is "one trillion, one hundred eleven million, nine thousand, nine hundred ninety-nine".