2021303203 has 4 divisors (see below), whose sum is σ = 2041316208. Its totient is φ = 2001290200.

The previous prime is 2021303183. The next prime is 2021303287. The reversal of 2021303203 is 3023031202.

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 2021303203 - 2⁹ = 2021302691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021303903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10006351 + ... + 10006552.

It is an arithmetic number, because the mean of its divisors is an integer number (510329052).

Almost surely, 2^2021303203 is an apocalyptic number.

2021303203 is a deficient number, since it is larger than the sum of its proper divisors (20013005).

2021303203 is a wasteful number, since it uses less digits than its factorization.

2021303203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20013004.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2021303203 is about 44958.9057139962. The cubic root of 2021303203 is about 1264.3786526050.

Adding to 2021303203 its reverse (3023031202), we get a palindrome (5044334405).

The spelling of 2021303203 in words is "two billion, twenty-one million, three hundred three thousand, two hundred three".