320221302343 has 2 divisors, whose sum is σ = 320221302344. Its totient is φ = 320221302342.

The previous prime is 320221302319. The next prime is 320221302397. The reversal of 320221302343 is 343203122023.

It is a weak prime.

It is an emirp because it is prime and its reverse (343203122023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320221302343 - 2¹⁷ = 320221171271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320221308343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160110651171 + 160110651172.

It is an arithmetic number, because the mean of its divisors is an integer number (160110651172).

Almost surely, 2^320221302343 is an apocalyptic number.

320221302343 is a deficient number, since it is larger than the sum of its proper divisors (1).

320221302343 is an equidigital number, since it uses as much as digits as its factorization.

320221302343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 320221302343 its reverse (343203122023), we get a palindrome (663424424366).

The spelling of 320221302343 in words is "three hundred twenty billion, two hundred twenty-one million, three hundred two thousand, three hundred forty-three".