20002105100 has 36 divisors (see below), whose sum is σ = 43457614368. Its totient is φ = 7991064000.

The previous prime is 20002105007. The next prime is 20002105111. The reversal of 20002105100 is 150120002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39716 + ... + 203915.

Almost surely, 2^20002105100 is an apocalyptic number.

20002105100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002105100 is an abundant number, since it is smaller than the sum of its proper divisors (23455509268).

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

20002105100 is a wasteful number, since it uses less digits than its factorization.

20002105100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244466 (or 244459 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 20002105100 its reverse (150120002), we get a palindrome (20152225102).

The spelling of 20002105100 in words is "twenty billion, two million, one hundred five thousand, one hundred".