442123134344233 has 4 divisors (see below), whose sum is σ = 446035728453588. Its totient is φ = 438210540234880.

The previous prime is 442123134344231. The next prime is 442123134344303. The reversal of 442123134344233 is 332443431321244.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 98168721608169 + 343954412736064 = 9908013^2 + 18546008^2 .

It is a cyclic number.

It is not a de Polignac number, because 442123134344233 - 2¹ = 442123134344231 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 442123134344233.

It is not an unprimeable number, because it can be changed into a prime (442123134344231) 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 in 3 ways as a sum of consecutive naturals, for example, 1956297054508 + ... + 1956297054733.

It is an arithmetic number, because the mean of its divisors is an integer number (111508932113397).

Almost surely, 2^{442123134344233} is an apocalyptic number.

It is an amenable number.

442123134344233 is a deficient number, since it is larger than the sum of its proper divisors (3912594109355).

442123134344233 is a wasteful number, since it uses less digits than its factorization.

442123134344233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912594109354.

The product of its digits is 1990656, while the sum is 43.

Adding to 442123134344233 its reverse (332443431321244), we get a palindrome (774566565665477).

The spelling of 442123134344233 in words is "four hundred forty-two trillion, one hundred twenty-three billion, one hundred thirty-four million, three hundred forty-four thousand, two hundred thirty-three".