11100020120999 has 4 divisors (see below), whose sum is σ = 11102413919064. Its totient is φ = 11097626322936.

The previous prime is 11100020120963. The next prime is 11100020121011. The reversal of 11100020120999 is 99902102000111.

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 11100020120999 - 2³⁶ = 11031300644263 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 (11100020120939) 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, 1196892077 + ... + 1196901350.

It is an arithmetic number, because the mean of its divisors is an integer number (2775603479766).

Almost surely, 2^{11100020120999} is an apocalyptic number.

11100020120999 is a deficient number, since it is larger than the sum of its proper divisors (2393798065).

11100020120999 is an equidigital number, since it uses as much as digits as its factorization.

11100020120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393798064.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 11100020120999 in words is "eleven trillion, one hundred billion, twenty million, one hundred twenty thousand, nine hundred ninety-nine".