442423321300403 has 4 divisors (see below), whose sum is σ = 443698316463000. Its totient is φ = 441148326137808.

The previous prime is 442423321300399. The next prime is 442423321300453. The reversal of 442423321300403 is 304003123324244.

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 442423321300403 - 2² = 442423321300399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442423321300453) 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, 637497580778 + ... + 637497581471.

It is an arithmetic number, because the mean of its divisors is an integer number (110924579115750).

Almost surely, 2^{442423321300403} is an apocalyptic number.

442423321300403 is a deficient number, since it is larger than the sum of its proper divisors (1274995162597).

442423321300403 is a wasteful number, since it uses less digits than its factorization.

442423321300403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274995162596.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 442423321300403 its reverse (304003123324244), we get a palindrome (746426444624647).

The spelling of 442423321300403 in words is "four hundred forty-two trillion, four hundred twenty-three billion, three hundred twenty-one million, three hundred thousand, four hundred three".