343212113 has 4 divisors (see below), whose sum is σ = 345515700. Its totient is φ = 340908528.

The previous prime is 343212109. The next prime is 343212127. The reversal of 343212113 is 311212343.

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 126180289 + 217031824 = 11233^2 + 14732^2 .

It is a cyclic number.

It is not a de Polignac number, because 343212113 - 2² = 343212109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343212913) 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, 1151570 + ... + 1151867.

It is an arithmetic number, because the mean of its divisors is an integer number (86378925).

Almost surely, 2^343212113 is an apocalyptic number.

It is an amenable number.

343212113 is a deficient number, since it is larger than the sum of its proper divisors (2303587).

343212113 is a wasteful number, since it uses less digits than its factorization.

343212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303586.

The product of its digits is 432, while the sum is 20.

The square root of 343212113 is about 18525.9848051325. The cubic root of 343212113 is about 700.1442648239.

Adding to 343212113 its reverse (311212343), we get a palindrome (654424456).

The spelling of 343212113 in words is "three hundred forty-three million, two hundred twelve thousand, one hundred thirteen".