2021210303 has 16 divisors (see below), whose sum is σ = 2412833280. Its totient is φ = 1656468576.

The previous prime is 2021210299. The next prime is 2021210327. The reversal of 2021210303 is 3030121202.

It is a happy number.

It is not a de Polignac number, because 2021210303 - 2² = 2021210299 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 (2021215303) 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 15 ways as a sum of consecutive naturals, for example, 27425 + ... + 69242.

It is an arithmetic number, because the mean of its divisors is an integer number (150802080).

Almost surely, 2^2021210303 is an apocalyptic number.

2021210303 is a deficient number, since it is larger than the sum of its proper divisors (391622977).

2021210303 is a wasteful number, since it uses less digits than its factorization.

2021210303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96806.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2021210303 is about 44957.8725364090. The cubic root of 2021210303 is about 1264.3592818386.

Adding to 2021210303 its reverse (3030121202), we get a palindrome (5051331505).

The spelling of 2021210303 in words is "two billion, twenty-one million, two hundred ten thousand, three hundred three".