442444140123 has 16 divisors (see below), whose sum is σ = 623252206080. Its totient is φ = 278732231456.

The previous prime is 442444140077. The next prime is 442444140133. The reversal of 442444140123 is 321041444244.

It is a cyclic number.

It is not a de Polignac number, because 442444140123 - 2⁹ = 442444139611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442444140133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54097665 + ... + 54105842.

It is an arithmetic number, because the mean of its divisors is an integer number (38953262880).

Almost surely, 2^442444140123 is an apocalyptic number.

442444140123 is a deficient number, since it is larger than the sum of its proper divisors (180808065957).

442444140123 is a wasteful number, since it uses less digits than its factorization.

442444140123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108203586.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 442444140123 its reverse (321041444244), we get a palindrome (763485584367).

The spelling of 442444140123 in words is "four hundred forty-two billion, four hundred forty-four million, one hundred forty thousand, one hundred twenty-three".