200120302100 has 72 divisors (see below), whose sum is σ = 453241699008. Its totient is φ = 76550918400.

The previous prime is 200120302087. The next prime is 200120302157. The reversal of 200120302100 is 1203021002.

It is a happy number.

It is a super-3 number, since 3×200120302100³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 17053235 + ... + 17064965.

Almost surely, 2^200120302100 is an apocalyptic number.

200120302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120302100 is an abundant number, since it is smaller than the sum of its proper divisors (253121396908).

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

200120302100 is a wasteful number, since it uses less digits than its factorization.

200120302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19185 (or 19178 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 200120302100 its reverse (1203021002), we get a palindrome (201323323102).

The spelling of 200120302100 in words is "two hundred billion, one hundred twenty million, three hundred two thousand, one hundred".