200120020999 has 4 divisors (see below), whose sum is σ = 200145940936. Its totient is φ = 200094101064.

The previous prime is 200120020987. The next prime is 200120021027. The reversal of 200120020999 is 999020021002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999020021002 = 2 ⋅499510010501.

It is a cyclic number.

It is not a de Polignac number, because 200120020999 - 2⁷ = 200120020871 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 (200120020909) 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, 12948384 + ... + 12963829.

It is an arithmetic number, because the mean of its divisors is an integer number (50036485234).

Almost surely, 2^200120020999 is an apocalyptic number.

200120020999 is a deficient number, since it is larger than the sum of its proper divisors (25919937).

200120020999 is an equidigital number, since it uses as much as digits as its factorization.

200120020999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25919936.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 200120020999 in words is "two hundred billion, one hundred twenty million, twenty thousand, nine hundred ninety-nine".