343211312 has 10 divisors (see below), whose sum is σ = 664971948. Its totient is φ = 171605648.

The previous prime is 343211311. The next prime is 343211339. The reversal of 343211312 is 213112343.

It is a super-2 number, since 2×343211312² = 235588009369522688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343211311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10725338 + ... + 10725369.

Almost surely, 2^343211312 is an apocalyptic number.

It is an amenable number.

343211312 is a deficient number, since it is larger than the sum of its proper divisors (321760636).

343211312 is a wasteful number, since it uses less digits than its factorization.

343211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21450715 (or 21450709 counting only the distinct ones).

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

The square root of 343211312 is about 18525.9631868359. The cubic root of 343211312 is about 700.1437201500.

Adding to 343211312 its reverse (213112343), we get a palindrome (556323655).

The spelling of 343211312 in words is "three hundred forty-three million, two hundred eleven thousand, three hundred twelve".