43132321443 has 24 divisors (see below), whose sum is σ = 61113556720. Its totient is φ = 27053729280.

The previous prime is 43132321373. The next prime is 43132321459. The reversal of 43132321443 is 34412323134.

It is a happy number.

It is not a de Polignac number, because 43132321443 - 2³⁴ = 25952452259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43132321443.

It is not an unprimeable number, because it can be changed into a prime (43132321493) 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 23 ways as a sum of consecutive naturals, for example, 3000453 + ... + 3014793.

Almost surely, 2^43132321443 is an apocalyptic number.

43132321443 is a deficient number, since it is larger than the sum of its proper divisors (17981235277).

43132321443 is a wasteful number, since it uses less digits than its factorization.

43132321443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17847 (or 17830 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 43132321443 its reverse (34412323134), we get a palindrome (77544644577).

The spelling of 43132321443 in words is "forty-three billion, one hundred thirty-two million, three hundred twenty-one thousand, four hundred forty-three".