43032223421 has 16 divisors (see below), whose sum is σ = 47752044480. Its totient is φ = 38447374080.

The previous prime is 43032223391. The next prime is 43032223447. The reversal of 43032223421 is 12432223034.

It is a cyclic number.

It is not a de Polignac number, because 43032223421 - 2⁶ = 43032223357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43032225421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4055495 + ... + 4066091.

It is an arithmetic number, because the mean of its divisors is an integer number (2984502780).

Almost surely, 2^43032223421 is an apocalyptic number.

It is an amenable number.

43032223421 is a deficient number, since it is larger than the sum of its proper divisors (4719821059).

43032223421 is a wasteful number, since it uses less digits than its factorization.

43032223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16924.

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

Adding to 43032223421 its reverse (12432223034), we get a palindrome (55464446455).

The spelling of 43032223421 in words is "forty-three billion, thirty-two million, two hundred twenty-three thousand, four hundred twenty-one".