2021203323 has 24 divisors (see below), whose sum is σ = 2953201680. Its totient is φ = 1332002880.

The previous prime is 2021203319. The next prime is 2021203339. The reversal of 2021203323 is 3233021202.

It is a happy number.

It is not a de Polignac number, because 2021203323 - 2² = 2021203319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021203296 and 2021203305.

It is not an unprimeable number, because it can be changed into a prime (2021204323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313965 + ... + 320337.

It is an arithmetic number, because the mean of its divisors is an integer number (123050070).

Almost surely, 2^2021203323 is an apocalyptic number.

2021203323 is a deficient number, since it is larger than the sum of its proper divisors (931998357).

2021203323 is a wasteful number, since it uses less digits than its factorization.

2021203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779 (or 6776 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2021203323 is about 44957.7949081135. The cubic root of 2021203323 is about 1264.3578264007.

Adding to 2021203323 its reverse (3233021202), we get a palindrome (5254224525).

The spelling of 2021203323 in words is "two billion, twenty-one million, two hundred three thousand, three hundred twenty-three".