320224421987 has 2 divisors, whose sum is σ = 320224421988. Its totient is φ = 320224421986.

The previous prime is 320224421977. The next prime is 320224422071. The reversal of 320224421987 is 789124422023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320224421987 - 2¹⁴ = 320224405603 is a prime.

It is not a weakly prime, because it can be changed into another prime (320224421947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160112210993 + 160112210994.

It is an arithmetic number, because the mean of its divisors is an integer number (160112210994).

Almost surely, 2^320224421987 is an apocalyptic number.

320224421987 is a deficient number, since it is larger than the sum of its proper divisors (1).

320224421987 is an equidigital number, since it uses as much as digits as its factorization.

320224421987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 320224421987 in words is "three hundred twenty billion, two hundred twenty-four million, four hundred twenty-one thousand, nine hundred eighty-seven".