43240341323 has 2 divisors, whose sum is σ = 43240341324. Its totient is φ = 43240341322.

The previous prime is 43240341299. The next prime is 43240341371. The reversal of 43240341323 is 32314304234.

43240341323 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 a de Polignac number, because none of the positive numbers 2^k-43240341323 is a prime.

It is not a weakly prime, because it can be changed into another prime (43240343323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620170661 + 21620170662.

It is an arithmetic number, because the mean of its divisors is an integer number (21620170662).

Almost surely, 2^43240341323 is an apocalyptic number.

43240341323 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240341323 is an equidigital number, since it uses as much as digits as its factorization.

43240341323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43240341323 its reverse (32314304234), we get a palindrome (75554645557).

The spelling of 43240341323 in words is "forty-three billion, two hundred forty million, three hundred forty-one thousand, three hundred twenty-three".