2021363 has 4 divisors (see below), whose sum is σ = 2033928. Its totient is φ = 2008800.

The previous prime is 2021339. The next prime is 2021377. The reversal of 2021363 is 3631202.

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 2021363 - 2¹⁶ = 1955827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021333) 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, 6038 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (508482).

2^2021363 is an apocalyptic number.

2021363 is a deficient number, since it is larger than the sum of its proper divisors (12565).

2021363 is a wasteful number, since it uses less digits than its factorization.

2021363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2021363 is about 1421.7464612230. The cubic root of 2021363 is about 126.4391120684.

Adding to 2021363 its reverse (3631202), we get a palindrome (5652565).

The spelling of 2021363 in words is "two million, twenty-one thousand, three hundred sixty-three".