42444013112423 has 4 divisors (see below), whose sum is σ = 45708937198008. Its totient is φ = 39179089026840.

The previous prime is 42444013112387. The next prime is 42444013112447. The reversal of 42444013112423 is 32421131044424.

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 42444013112423 - 2⁴⁰ = 41344501484647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444013112453) 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, 1632462042773 + ... + 1632462042798.

It is an arithmetic number, because the mean of its divisors is an integer number (11427234299502).

Almost surely, 2^{42444013112423} is an apocalyptic number.

42444013112423 is a deficient number, since it is larger than the sum of its proper divisors (3264924085585).

42444013112423 is a wasteful number, since it uses less digits than its factorization.

42444013112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264924085584.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 42444013112423 its reverse (32421131044424), we get a palindrome (74865144156847).

The spelling of 42444013112423 in words is "forty-two trillion, four hundred forty-four billion, thirteen million, one hundred twelve thousand, four hundred twenty-three".