442420144021223 has 4 divisors (see below), whose sum is σ = 442420200351528. Its totient is φ = 442420087690920.

The previous prime is 442420144021187. The next prime is 442420144021249. The reversal of 442420144021223 is 322120441024244.

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 442420144021223 - 2⁶ = 442420144021159 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 (442420144321223) 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, 14014136 + ... + 32882157.

It is an arithmetic number, because the mean of its divisors is an integer number (110605050087882).

Almost surely, 2^{442420144021223} is an apocalyptic number.

442420144021223 is a deficient number, since it is larger than the sum of its proper divisors (56330305).

442420144021223 is an equidigital number, since it uses as much as digits as its factorization.

442420144021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56330304.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 442420144021223 its reverse (322120441024244), we get a palindrome (764540585045467).

The spelling of 442420144021223 in words is "four hundred forty-two trillion, four hundred twenty billion, one hundred forty-four million, twenty-one thousand, two hundred twenty-three".