343321243 has 4 divisors (see below), whose sum is σ = 345791320. Its totient is φ = 340851168.

The previous prime is 343321201. The next prime is 343321247. The reversal of 343321243 is 342123343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343321243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343321247) 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, 1234830 + ... + 1235107.

It is an arithmetic number, because the mean of its divisors is an integer number (86447830).

Almost surely, 2^343321243 is an apocalyptic number.

343321243 is a deficient number, since it is larger than the sum of its proper divisors (2470077).

343321243 is a wasteful number, since it uses less digits than its factorization.

343321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470076.

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

The square root of 343321243 is about 18528.9298935475. The cubic root of 343321243 is about 700.2184644649.

Adding to 343321243 its reverse (342123343), we get a palindrome (685444586).

The spelling of 343321243 in words is "three hundred forty-three million, three hundred twenty-one thousand, two hundred forty-three".