10200020100 has 36 divisors (see below), whose sum is σ = 29512059024. Its totient is φ = 2720005280.

The previous prime is 10200020087. The next prime is 10200020107. The reversal of 10200020100 is 102000201.

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 not an unprimeable number, because it can be changed into a prime (10200020107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16999734 + ... + 17000333.

Almost surely, 2^10200020100 is an apocalyptic number.

10200020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200020100 is an abundant number, since it is smaller than the sum of its proper divisors (19312038924).

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

10200020100 is a wasteful number, since it uses less digits than its factorization.

10200020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34000084 (or 34000077 counting only the distinct ones).

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

Adding to 10200020100 its reverse (102000201), we get a palindrome (10302020301).

10200020100 divided by its reverse (102000201) gives a square (100 = 10²).

The spelling of 10200020100 in words is "ten billion, two hundred million, twenty thousand, one hundred".