43221243323 has 4 divisors (see below), whose sum is σ = 43381917360. Its totient is φ = 43060569288.

The previous prime is 43221243269. The next prime is 43221243337. The reversal of 43221243323 is 32334212234.

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 43221243323 - 2⁸ = 43221243067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43521243323) 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 3 ways as a sum of consecutive naturals, for example, 80336615 + ... + 80337152.

It is an arithmetic number, because the mean of its divisors is an integer number (10845479340).

Almost surely, 2^43221243323 is an apocalyptic number.

43221243323 is a deficient number, since it is larger than the sum of its proper divisors (160674037).

43221243323 is a wasteful number, since it uses less digits than its factorization.

43221243323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160674036.

The product of its digits is 20736, while the sum is 29.

Adding to 43221243323 its reverse (32334212234), we get a palindrome (75555455557).

The spelling of 43221243323 in words is "forty-three billion, two hundred twenty-one million, two hundred forty-three thousand, three hundred twenty-three".