43234243243 has 4 divisors (see below), whose sum is σ = 45777434040. Its totient is φ = 40691052448.

The previous prime is 43234243229. The next prime is 43234243289. The reversal of 43234243243 is 34234243234.

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 43234243243 - 2¹⁷ = 43234112171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43234243199 and 43234243208.

It is not an unprimeable number, because it can be changed into a prime (43234243543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271595373 + ... + 1271595406.

It is an arithmetic number, because the mean of its divisors is an integer number (11444358510).

Almost surely, 2^43234243243 is an apocalyptic number.

43234243243 is a deficient number, since it is larger than the sum of its proper divisors (2543190797).

43234243243 is a wasteful number, since it uses less digits than its factorization.

43234243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543190796.

The product of its digits is 165888, while the sum is 34.

Adding to 43234243243 its reverse (34234243234), we get a palindrome (77468486477).

Subtracting from 43234243243 its reverse (34234243234), we obtain a palindrome (9000000009).

The spelling of 43234243243 in words is "forty-three billion, two hundred thirty-four million, two hundred forty-three thousand, two hundred forty-three".