2021403321204 has 48 divisors (see below), whose sum is σ = 4797679595520. Its totient is φ = 662236698240.

The previous prime is 2021403321199. The next prime is 2021403321233. The reversal of 2021403321204 is 4021233041202.

It is a happy number.

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, 143319 + ... + 2015774.

It is an arithmetic number, because the mean of its divisors is an integer number (99951658240).

Almost surely, 2^{2021403321204} is an apocalyptic number.

It is an amenable number.

2021403321204 is an abundant number, since it is smaller than the sum of its proper divisors (2776276274316).

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

2021403321204 is a wasteful number, since it uses less digits than its factorization.

2021403321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160440 (or 2160438 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2021403321204 its reverse (4021233041202), we get a palindrome (6042636362406).

The spelling of 2021403321204 in words is "two trillion, twenty-one billion, four hundred three million, three hundred twenty-one thousand, two hundred four".