42242043243443 has 4 divisors (see below), whose sum is σ = 42242540486640. Its totient is φ = 42241546000248.

The previous prime is 42242043243437. The next prime is 42242043243451. The reversal of 42242043243443 is 34434234024224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42242043243443 - 2²⁰ = 42242042194867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42242043243443.

It is not an unprimeable number, because it can be changed into a prime (42242043243143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248494148 + ... + 248664081.

It is an arithmetic number, because the mean of its divisors is an integer number (10560635121660).

Almost surely, 2^{42242043243443} is an apocalyptic number.

42242043243443 is a deficient number, since it is larger than the sum of its proper divisors (497243197).

42242043243443 is an equidigital number, since it uses as much as digits as its factorization.

42242043243443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497243196.

The product of its (nonzero) digits is 1769472, while the sum is 41.

Adding to 42242043243443 its reverse (34434234024224), we get a palindrome (76676277267667).

It can be divided in two parts, 4224204 and 3243443, that added together give a palindrome (7467647).

The spelling of 42242043243443 in words is "forty-two trillion, two hundred forty-two billion, forty-three million, two hundred forty-three thousand, four hundred forty-three".