343324321 has 4 divisors (see below), whose sum is σ = 345598144. Its totient is φ = 341050500.

The previous prime is 343324313. The next prime is 343324339. The reversal of 343324321 is 123423343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343324321 - 2³ = 343324313 is a prime.

It is a super-2 number, since 2×343324321² = 235743178780222082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343324361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136685 + ... + 1136986.

It is an arithmetic number, because the mean of its divisors is an integer number (86399536).

Almost surely, 2^343324321 is an apocalyptic number.

It is an amenable number.

343324321 is a deficient number, since it is larger than the sum of its proper divisors (2273823).

343324321 is a wasteful number, since it uses less digits than its factorization.

343324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273822.

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

The square root of 343324321 is about 18529.0129526643. The cubic root of 343324321 is about 700.2205570299.

Adding to 343324321 its reverse (123423343), we get a palindrome (466747664).

The spelling of 343324321 in words is "three hundred forty-three million, three hundred twenty-four thousand, three hundred twenty-one".