43542564411023 has 2 divisors, whose sum is σ = 43542564411024. Its totient is φ = 43542564411022.

The previous prime is 43542564410987. The next prime is 43542564411041. The reversal of 43542564411023 is 32011446524534.

43542564411023 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 43542564411023 - 2²⁰ = 43542563362447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43542564411323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771282205511 + 21771282205512.

It is an arithmetic number, because the mean of its divisors is an integer number (21771282205512).

Almost surely, 2^{43542564411023} is an apocalyptic number.

43542564411023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43542564411023 is an equidigital number, since it uses as much as digits as its factorization.

43542564411023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 43542564411023 in words is "forty-three trillion, five hundred forty-two billion, five hundred sixty-four million, four hundred eleven thousand, twenty-three".