210320200020 has 144 divisors (see below), whose sum is σ = 685486162368. Its totient is φ = 48042086400.

The previous prime is 210320200019. The next prime is 210320200037. The reversal of 210320200020 is 20002023012.

210320200020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210320199969 and 210320200005.

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 47 ways as a sum of consecutive naturals, for example, 4684599 + ... + 4729281.

It is an arithmetic number, because the mean of its divisors is an integer number (4760320572).

Almost surely, 2^210320200020 is an apocalyptic number.

210320200020 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 210320200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342743081184).

210320200020 is an abundant number, since it is smaller than the sum of its proper divisors (475165962348).

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

210320200020 is a wasteful number, since it uses less digits than its factorization.

210320200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46310 (or 46301 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 210320200020 its reverse (20002023012), we get a palindrome (230322223032).

The spelling of 210320200020 in words is "two hundred ten billion, three hundred twenty million, two hundred thousand, twenty".