442320311543 has 16 divisors (see below), whose sum is σ = 508018093440. Its totient is φ = 380877876000.

The previous prime is 442320311533. The next prime is 442320311551. The reversal of 442320311543 is 345113023244.

It is not a de Polignac number, because 442320311543 - 2¹² = 442320307447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442320311513) 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 15 ways as a sum of consecutive naturals, for example, 1005896 + ... + 1377122.

It is an arithmetic number, because the mean of its divisors is an integer number (31751130840).

Almost surely, 2^442320311543 is an apocalyptic number.

442320311543 is a deficient number, since it is larger than the sum of its proper divisors (65697781897).

442320311543 is a wasteful number, since it uses less digits than its factorization.

442320311543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376958.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 442320311543 its reverse (345113023244), we get a palindrome (787433334787).

The spelling of 442320311543 in words is "four hundred forty-two billion, three hundred twenty million, three hundred eleven thousand, five hundred forty-three".