2021503343 has 4 divisors (see below), whose sum is σ = 2033905368. Its totient is φ = 2009101320.

The previous prime is 2021503331. The next prime is 2021503349. The reversal of 2021503343 is 3433051202.

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 2021503343 - 2⁶ = 2021503279 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 (2021503349) 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, 6200768 + ... + 6201093.

It is an arithmetic number, because the mean of its divisors is an integer number (508476342).

Almost surely, 2^2021503343 is an apocalyptic number.

2021503343 is a deficient number, since it is larger than the sum of its proper divisors (12402025).

2021503343 is a wasteful number, since it uses less digits than its factorization.

2021503343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402024.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2021503343 is about 44961.1314693036. The cubic root of 2021503343 is about 1264.4203821835.

Adding to 2021503343 its reverse (3433051202), we get a palindrome (5454554545).

The spelling of 2021503343 in words is "two billion, twenty-one million, five hundred three thousand, three hundred forty-three".