20200001020100 has 144 divisors (see below), whose sum is σ = 48306339446400. Its totient is φ = 7270623360000.

The previous prime is 20200001020051. The next prime is 20200001020163. The reversal of 20200001020100 is 102010000202.

20200001020100 is a modest number, since divided by 1020100 gives 202000 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413156456 + ... + 413205344.

It is an arithmetic number, because the mean of its divisors is an integer number (335460690600).

Almost surely, 2^{20200001020100} is an apocalyptic number.

20200001020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200001020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24153169723200).

20200001020100 is an abundant number, since it is smaller than the sum of its proper divisors (28106338426300).

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

20200001020100 is a wasteful number, since it uses less digits than its factorization.

20200001020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52734 (or 52727 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20200001020100 its reverse (102010000202), we get a palindrome (20302011020302).

The spelling of 20200001020100 in words is "twenty trillion, two hundred billion, one million, twenty thousand, one hundred".