8043203021 has 4 divisors (see below), whose sum is σ = 9192232032. Its totient is φ = 6894174012.

The previous prime is 8043202969. The next prime is 8043203057. The reversal of 8043203021 is 1203023408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8043203021 - 2¹⁸ = 8042940877 is a prime.

It is a super-2 number, since 2×8043203021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8043208021) 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, 574514495 + ... + 574514508.

It is an arithmetic number, because the mean of its divisors is an integer number (2298058008).

Almost surely, 2^8043203021 is an apocalyptic number.

It is an amenable number.

8043203021 is a deficient number, since it is larger than the sum of its proper divisors (1149029011).

8043203021 is a wasteful number, since it uses less digits than its factorization.

8043203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149029010.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 8043203021 is about 89683.9061426296. The cubic root of 8043203021 is about 2003.5937902180.

Adding to 8043203021 its reverse (1203023408), we get a palindrome (9246226429).

The spelling of 8043203021 in words is "eight billion, forty-three million, two hundred three thousand, twenty-one".