343313213 has 4 divisors (see below), whose sum is σ = 351686748. Its totient is φ = 334939680.

The previous prime is 343313207. The next prime is 343313221. The reversal of 343313213 is 312313343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38217124 + 305096089 = 6182^2 + 17467^2 .

It is a cyclic number.

It is not a de Polignac number, because 343313213 - 2⁴ = 343313197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343316213) 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, 4186706 + ... + 4186787.

It is an arithmetic number, because the mean of its divisors is an integer number (87921687).

Almost surely, 2^343313213 is an apocalyptic number.

It is an amenable number.

343313213 is a deficient number, since it is larger than the sum of its proper divisors (8373535).

343313213 is an equidigital number, since it uses as much as digits as its factorization.

343313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8373534.

The product of its digits is 1944, while the sum is 23.

The square root of 343313213 is about 18528.7132041057. The cubic root of 343313213 is about 700.2130052454.

Adding to 343313213 its reverse (312313343), we get a palindrome (655626556).

The spelling of 343313213 in words is "three hundred forty-three million, three hundred thirteen thousand, two hundred thirteen".