202003203021020 has 48 divisors (see below), whose sum is σ = 442037716525440. Its totient is φ = 77445577327104.

The previous prime is 202003203021019. The next prime is 202003203021083. The reversal of 202003203021020 is 20120302300202.

202003203021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 202003203021020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271020484 + ... + 1271179403.

It is an arithmetic number, because the mean of its divisors is an integer number (9209119094280).

Almost surely, 2^{202003203021020} is an apocalyptic number.

202003203021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202003203021020 is an abundant number, since it is smaller than the sum of its proper divisors (240034513504420).

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

202003203021020 is a wasteful number, since it uses less digits than its factorization.

202003203021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542200062 (or 2542200060 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 202003203021020 its reverse (20120302300202), we get a palindrome (222123505321222).

The spelling of 202003203021020 in words is "two hundred two trillion, three billion, two hundred three million, twenty-one thousand, twenty".