343140213 has 16 divisors (see below), whose sum is σ = 498955520. Its totient is φ = 208488384.

The previous prime is 343140199. The next prime is 343140251. The reversal of 343140213 is 312041343.

It is not a de Polignac number, because 343140213 - 2¹⁰ = 343139189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343140213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343140253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52606 + ... + 58767.

It is an arithmetic number, because the mean of its divisors is an integer number (31184720).

Almost surely, 2^343140213 is an apocalyptic number.

It is an amenable number.

343140213 is a deficient number, since it is larger than the sum of its proper divisors (155815307).

343140213 is a wasteful number, since it uses less digits than its factorization.

343140213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111468.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 343140213 is about 18524.0441858683. The cubic root of 343140213 is about 700.0953699991.

Adding to 343140213 its reverse (312041343), we get a palindrome (655181556).

The spelling of 343140213 in words is "three hundred forty-three million, one hundred forty thousand, two hundred thirteen".