342304321 has 2 divisors, whose sum is σ = 342304322. Its totient is φ = 342304320.

The previous prime is 342304307. The next prime is 342304351. The reversal of 342304321 is 123403243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336355600 + 5948721 = 18340^2 + 2439^2 .

It is an emirp because it is prime and its reverse (123403243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342304321 - 2⁵ = 342304289 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 342304292 and 342304301.

It is not a weakly prime, because it can be changed into another prime (342304301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171152160 + 171152161.

It is an arithmetic number, because the mean of its divisors is an integer number (171152161).

Almost surely, 2^342304321 is an apocalyptic number.

It is an amenable number.

342304321 is a deficient number, since it is larger than the sum of its proper divisors (1).

342304321 is an equidigital number, since it uses as much as digits as its factorization.

342304321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 342304321 is about 18501.4680768851. The cubic root of 342304321 is about 699.5264286664.

Adding to 342304321 its reverse (123403243), we get a palindrome (465707564).

The spelling of 342304321 in words is "three hundred forty-two million, three hundred four thousand, three hundred twenty-one".