20210000100 has 36 divisors (see below), whose sum is σ = 58474267824. Its totient is φ = 5389333280.

The previous prime is 20210000099. The next prime is 20210000137. The reversal of 20210000100 is 100001202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33683034 + ... + 33683633.

Almost surely, 2^20210000100 is an apocalyptic number.

20210000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210000100 is an abundant number, since it is smaller than the sum of its proper divisors (38264267724).

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

20210000100 is a wasteful number, since it uses less digits than its factorization.

20210000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67366684 (or 67366677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20210000100 its reverse (100001202), we get a palindrome (20310001302).

The spelling of 20210000100 in words is "twenty billion, two hundred ten million, one hundred", and thus it is an aban number.