320020220243 has 2 divisors, whose sum is σ = 320020220244. Its totient is φ = 320020220242.

The previous prime is 320020220189. The next prime is 320020220363. The reversal of 320020220243 is 342022020023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320020220243 - 2³⁸ = 45142313299 is a prime.

It is not a weakly prime, because it can be changed into another prime (320020228243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160010110121 + 160010110122.

It is an arithmetic number, because the mean of its divisors is an integer number (160010110122).

Almost surely, 2^320020220243 is an apocalyptic number.

320020220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

320020220243 is an equidigital number, since it uses as much as digits as its factorization.

320020220243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 320020220243 its reverse (342022020023), we get a palindrome (662042240266).

The spelling of 320020220243 in words is "three hundred twenty billion, twenty million, two hundred twenty thousand, two hundred forty-three".