43424111011243 has 2 divisors, whose sum is σ = 43424111011244. Its totient is φ = 43424111011242.

The previous prime is 43424111011219. The next prime is 43424111011261. The reversal of 43424111011243 is 34211011142434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43424111011243 is a prime.

It is not a weakly prime, because it can be changed into another prime (43424111011643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712055505621 + 21712055505622.

It is an arithmetic number, because the mean of its divisors is an integer number (21712055505622).

Almost surely, 2^{43424111011243} is an apocalyptic number.

43424111011243 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424111011243 is an equidigital number, since it uses as much as digits as its factorization.

43424111011243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 43424111011243 its reverse (34211011142434), we get a palindrome (77635122153677).

The spelling of 43424111011243 in words is "forty-three trillion, four hundred twenty-four billion, one hundred eleven million, eleven thousand, two hundred forty-three".