442443103321 has 4 divisors (see below), whose sum is σ = 445157478352. Its totient is φ = 439728728292.

The previous prime is 442443103231. The next prime is 442443103343. The reversal of 442443103321 is 123301344244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442443103321 - 2⁹ = 442443102809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442443103121) 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, 1357187271 + ... + 1357187596.

It is an arithmetic number, because the mean of its divisors is an integer number (111289369588).

Almost surely, 2^442443103321 is an apocalyptic number.

It is an amenable number.

442443103321 is a deficient number, since it is larger than the sum of its proper divisors (2714375031).

442443103321 is a wasteful number, since it uses less digits than its factorization.

442443103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714375030.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 442443103321 its reverse (123301344244), we get a palindrome (565744447565).

The spelling of 442443103321 in words is "four hundred forty-two billion, four hundred forty-three million, one hundred three thousand, three hundred twenty-one".