642221524003 has 2 divisors, whose sum is σ = 642221524004. Its totient is φ = 642221524002.

The previous prime is 642221524001. The next prime is 642221524033. The reversal of 642221524003 is 300425122246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 642221524003 - 2¹ = 642221524001 is a prime.

Together with 642221524001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (642221524001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321110762001 + 321110762002.

It is an arithmetic number, because the mean of its divisors is an integer number (321110762002).

Almost surely, 2^642221524003 is an apocalyptic number.

642221524003 is a deficient number, since it is larger than the sum of its proper divisors (1).

642221524003 is an equidigital number, since it uses as much as digits as its factorization.

642221524003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 642221524003 its reverse (300425122246), we get a palindrome (942646646249).

The spelling of 642221524003 in words is "six hundred forty-two billion, two hundred twenty-one million, five hundred twenty-four thousand, three".