343140323 has 4 divisors (see below), whose sum is σ = 361200360. Its totient is φ = 325080288.

The previous prime is 343140293. The next prime is 343140337. The reversal of 343140323 is 323041343.

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

It is a cyclic number.

It is not a de Polignac number, because 343140323 - 2¹⁰ = 343139299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343140353) 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, 9029990 + ... + 9030027.

It is an arithmetic number, because the mean of its divisors is an integer number (90300090).

Almost surely, 2^343140323 is an apocalyptic number.

343140323 is a deficient number, since it is larger than the sum of its proper divisors (18060037).

343140323 is a wasteful number, since it uses less digits than its factorization.

343140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18060036.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 343140323 is about 18524.0471549821. The cubic root of 343140323 is about 700.0954448087.

Adding to 343140323 its reverse (323041343), we get a palindrome (666181666).

The spelling of 343140323 in words is "three hundred forty-three million, one hundred forty thousand, three hundred twenty-three".