43043002302221 has 4 divisors (see below), whose sum is σ = 43748625290844. Its totient is φ = 42337379313600.

The previous prime is 43043002302217. The next prime is 43043002302233. The reversal of 43043002302221 is 12220320034034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 998022978121 + 42044979324100 = 999011^2 + 6484210^2 .

It is a cyclic number.

It is not a de Polignac number, because 43043002302221 - 2² = 43043002302217 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 (43043002302211) 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, 352811494220 + ... + 352811494341.

It is an arithmetic number, because the mean of its divisors is an integer number (10937156322711).

Almost surely, 2^{43043002302221} is an apocalyptic number.

It is an amenable number.

43043002302221 is a deficient number, since it is larger than the sum of its proper divisors (705622988623).

43043002302221 is an equidigital number, since it uses as much as digits as its factorization.

43043002302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705622988622.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 43043002302221 its reverse (12220320034034), we get a palindrome (55263322336255).

The spelling of 43043002302221 in words is "forty-three trillion, forty-three billion, two million, three hundred two thousand, two hundred twenty-one".