43443320254243 has 16 divisors (see below), whose sum is σ = 56282844056320. Its totient is φ = 32563645487136.

The previous prime is 43443320254231. The next prime is 43443320254277. The reversal of 43443320254243 is 34245202334434.

It is a cyclic number.

It is not a de Polignac number, because 43443320254243 - 2⁴¹ = 41244296998691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43443320254243.

It is not an unprimeable number, because it can be changed into a prime (43443320254043) 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, 12563133105 + ... + 12563136562.

It is an arithmetic number, because the mean of its divisors is an integer number (3517677753520).

Almost surely, 2^{43443320254243} is an apocalyptic number.

43443320254243 is a deficient number, since it is larger than the sum of its proper divisors (12839523802077).

43443320254243 is a wasteful number, since it uses less digits than its factorization.

43443320254243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25126269706.

The product of its (nonzero) digits is 3317760, while the sum is 43.

Adding to 43443320254243 its reverse (34245202334434), we get a palindrome (77688522588677).

The spelling of 43443320254243 in words is "forty-three trillion, four hundred forty-three billion, three hundred twenty million, two hundred fifty-four thousand, two hundred forty-three".