21203101200300 has 144 divisors (see below), whose sum is σ = 64332434439840. Its totient is φ = 5384405698560.

The previous prime is 21203101200299. The next prime is 21203101200311. The reversal of 21203101200300 is 300210130212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21203101200300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16057627 + ... + 17327826.

Almost surely, 2^{21203101200300} is an apocalyptic number.

21203101200300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21203101200300 is an abundant number, since it is smaller than the sum of its proper divisors (43129333239540).

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

21203101200300 is a wasteful number, since it uses less digits than its factorization.

21203101200300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33385572 (or 33385565 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21203101200300 its reverse (300210130212), we get a palindrome (21503311330512).

The spelling of 21203101200300 in words is "twenty-one trillion, two hundred three billion, one hundred one million, two hundred thousand, three hundred".