42443144345023 has 2 divisors, whose sum is σ = 42443144345024. Its totient is φ = 42443144345022.

The previous prime is 42443144344961. The next prime is 42443144345059. The reversal of 42443144345023 is 32054344134424.

42443144345023 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 a de Polignac number, because none of the positive numbers 2^k-42443144345023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42443141345023) 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, 21221572172511 + 21221572172512.

It is an arithmetic number, because the mean of its divisors is an integer number (21221572172512).

Almost surely, 2^{42443144345023} is an apocalyptic number.

42443144345023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42443144345023 is an equidigital number, since it uses as much as digits as its factorization.

42443144345023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2211840, while the sum is 43.

Adding to 42443144345023 its reverse (32054344134424), we get a palindrome (74497488479447).

The spelling of 42443144345023 in words is "forty-two trillion, four hundred forty-three billion, one hundred forty-four million, three hundred forty-five thousand, twenty-three".