43321112243 has 2 divisors, whose sum is σ = 43321112244. Its totient is φ = 43321112242.

The previous prime is 43321112221. The next prime is 43321112249. The reversal of 43321112243 is 34221112334.

43321112243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43321112243 - 2¹⁰ = 43321111219 is a prime.

It is not a weakly prime, because it can be changed into another prime (43321112249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21660556121 + 21660556122.

It is an arithmetic number, because the mean of its divisors is an integer number (21660556122).

Almost surely, 2^43321112243 is an apocalyptic number.

43321112243 is a deficient number, since it is larger than the sum of its proper divisors (1).

43321112243 is an equidigital number, since it uses as much as digits as its factorization.

43321112243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

Adding to 43321112243 its reverse (34221112334), we get a palindrome (77542224577).

Subtracting from 43321112243 its reverse (34221112334), we obtain a palindrome (9099999909).

The spelling of 43321112243 in words is "forty-three billion, three hundred twenty-one million, one hundred twelve thousand, two hundred forty-three".