110002001999 has 4 divisors (see below), whose sum is σ = 112560188136. Its totient is φ = 107443815864.

The previous prime is 110002001911. The next prime is 110002002001. The reversal of 110002001999 is 999100200011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999100200011 = 69497 ⋅14376163.

It is a cyclic number.

It is not a de Polignac number, because 110002001999 - 2¹⁶ = 110001936463 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 (110002001909) 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, 1279093004 + ... + 1279093089.

It is an arithmetic number, because the mean of its divisors is an integer number (28140047034).

Almost surely, 2^110002001999 is an apocalyptic number.

110002001999 is a deficient number, since it is larger than the sum of its proper divisors (2558186137).

110002001999 is an equidigital number, since it uses as much as digits as its factorization.

110002001999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558186136.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 110002001999 in words is "one hundred ten billion, two million, one thousand, nine hundred ninety-nine".