200102100 has 72 divisors (see below), whose sum is σ = 631605408. Its totient is φ = 48508800.

The previous prime is 200102057. The next prime is 200102101. The reversal of 200102100 is 1201002.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27019 + ... + 33618.

Almost surely, 2^200102100 is an apocalyptic number.

200102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200102100 is an abundant number, since it is smaller than the sum of its proper divisors (431503308).

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

200102100 is a wasteful number, since it uses less digits than its factorization.

200102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60665 (or 60658 counting only the distinct ones).

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

The square root of 200102100 is about 14145.7449432683. The cubic root of 200102100 is about 584.9030447838.

Adding to 200102100 its reverse (1201002), we get a palindrome (201303102).

The spelling of 200102100 in words is "two hundred million, one hundred two thousand, one hundred".