203021300020 has 96 divisors (see below), whose sum is σ = 559522897920. Its totient is φ = 59948864640.

The previous prime is 203021299993. The next prime is 203021300023. The reversal of 203021300020 is 20003120302.

It is a happy number.

203021300020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203021300023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3440004 + ... + 3498523.

It is an arithmetic number, because the mean of its divisors is an integer number (5828363520).

Almost surely, 2^203021300020 is an apocalyptic number.

203021300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203021300020 is an abundant number, since it is smaller than the sum of its proper divisors (356501597900).

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

203021300020 is a wasteful number, since it uses less digits than its factorization.

203021300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938573 (or 6938571 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 203021300020 its reverse (20003120302), we get a palindrome (223024420322).

The spelling of 203021300020 in words is "two hundred three billion, twenty-one million, three hundred thousand, twenty".