20810300900 has 18 divisors (see below), whose sum is σ = 45158353170. Its totient is φ = 8324120320.

The previous prime is 20810300897. The next prime is 20810300923. The reversal of 20810300900 is 900301802.

It can be written as a sum of positive squares in 3 ways, for example, as 7431076 + 20802869824 = 2726^2 + 144232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104051405 + ... + 104051604.

Almost surely, 2^20810300900 is an apocalyptic number.

20810300900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20810300900 is an abundant number, since it is smaller than the sum of its proper divisors (24348052270).

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

20810300900 is a wasteful number, since it uses less digits than its factorization.

20810300900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208103023 (or 208103016 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20810300900 in words is "twenty billion, eight hundred ten million, three hundred thousand, nine hundred".