2021243323 has 4 divisors (see below), whose sum is σ = 2204992728. Its totient is φ = 1837493920.

The previous prime is 2021243309. The next prime is 2021243333. The reversal of 2021243323 is 3233421202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021243323 - 2⁵ = 2021243291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021243294 and 2021243303.

It is not an unprimeable number, because it can be changed into a prime (2021243303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91874686 + ... + 91874707.

It is an arithmetic number, because the mean of its divisors is an integer number (551248182).

Almost surely, 2^2021243323 is an apocalyptic number.

2021243323 is a deficient number, since it is larger than the sum of its proper divisors (183749405).

2021243323 is a wasteful number, since it uses less digits than its factorization.

2021243323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183749404.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2021243323 is about 44958.2397675888. The cubic root of 2021243323 is about 1264.3661669734.

Adding to 2021243323 its reverse (3233421202), we get a palindrome (5254664525).

The spelling of 2021243323 in words is "two billion, twenty-one million, two hundred forty-three thousand, three hundred twenty-three".