2021203213223 has 8 divisors (see below), whose sum is σ = 2023301965440. Its totient is φ = 2019104696160.

The previous prime is 2021203213217. The next prime is 2021203213247. The reversal of 2021203213223 is 3223123021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021203213223 - 2²⁸ = 2020934777767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021203213213) 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, 21024461 + ... + 21120377.

It is an arithmetic number, because the mean of its divisors is an integer number (252912745680).

Almost surely, 2^{2021203213223} is an apocalyptic number.

2021203213223 is a deficient number, since it is larger than the sum of its proper divisors (2098752217).

2021203213223 is a wasteful number, since it uses less digits than its factorization.

2021203213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117577.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2021203213223 its reverse (3223123021202), we get a palindrome (5244326234425).

The spelling of 2021203213223 in words is "two trillion, twenty-one billion, two hundred three million, two hundred thirteen thousand, two hundred twenty-three".