200909110900 has 18 divisors (see below), whose sum is σ = 435972770870. Its totient is φ = 80363644320.

The previous prime is 200909110837. The next prime is 200909110999. The reversal of 200909110900 is 9011909002.

It can be written as a sum of positive squares in 3 ways, for example, as 316199524 + 200592911376 = 17782^2 + 447876^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004545455 + ... + 1004545654.

Almost surely, 2^200909110900 is an apocalyptic number.

200909110900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200909110900 is an abundant number, since it is smaller than the sum of its proper divisors (235063659970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200909110900 is a wasteful number, since it uses less digits than its factorization.

200909110900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009091123 (or 2009091116 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 200909110900 in words is "two hundred billion, nine hundred nine million, one hundred ten thousand, nine hundred".