2100200203320 has 128 divisors (see below), whose sum is σ = 6321478775040. Its totient is φ = 558198558720.

The previous prime is 2100200203313. The next prime is 2100200203331. The reversal of 2100200203320 is 233020020012.

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 2100200203320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204433704 + ... + 204443976.

It is an arithmetic number, because the mean of its divisors is an integer number (49386552930).

Almost surely, 2^{2100200203320} is an apocalyptic number.

2100200203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100200203320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3160739387520).

2100200203320 is an abundant number, since it is smaller than the sum of its proper divisors (4221278571720).

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

2100200203320 is a wasteful number, since it uses less digits than its factorization.

2100200203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15765 (or 15761 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 2100200203320 its reverse (233020020012), we get a palindrome (2333220223332).

The spelling of 2100200203320 in words is "two trillion, one hundred billion, two hundred million, two hundred three thousand, three hundred twenty".