43011240343 has 2 divisors, whose sum is σ = 43011240344. Its totient is φ = 43011240342.

The previous prime is 43011240341. The next prime is 43011240347. The reversal of 43011240343 is 34304211034.

43011240343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43011240343 - 2¹ = 43011240341 is a prime.

Together with 43011240341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43011240341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21505620171 + 21505620172.

It is an arithmetic number, because the mean of its divisors is an integer number (21505620172).

Almost surely, 2^43011240343 is an apocalyptic number.

43011240343 is a deficient number, since it is larger than the sum of its proper divisors (1).

43011240343 is an equidigital number, since it uses as much as digits as its factorization.

43011240343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43011240343 its reverse (34304211034), we get a palindrome (77315451377).

The spelling of 43011240343 in words is "forty-three billion, eleven million, two hundred forty thousand, three hundred forty-three".