210003312020 has 24 divisors (see below), whose sum is σ = 443245577544. Its totient is φ = 83574920576.

The previous prime is 210003312019. The next prime is 210003312023. The reversal of 210003312020 is 20213300012.

It is a happy number.

210003312020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43516463236 + 166486848784 = 208606^2 + 408028^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210003311986 and 210003312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210003312023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26646227 + ... + 26654106.

It is an arithmetic number, because the mean of its divisors is an integer number (18468565731).

Almost surely, 2^210003312020 is an apocalyptic number.

210003312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210003312020 is an abundant number, since it is smaller than the sum of its proper divisors (233242265524).

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

210003312020 is a wasteful number, since it uses less digits than its factorization.

210003312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53300539 (or 53300537 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 210003312020 its reverse (20213300012), we get a palindrome (230216612032).

The spelling of 210003312020 in words is "two hundred ten billion, three million, three hundred twelve thousand, twenty".