343130312 has 128 divisors (see below), whose sum is σ = 816480000. Its totient is φ = 131850240.

The previous prime is 343130311. The next prime is 343130317. The reversal of 343130312 is 213031343.

It is a super-2 number, since 2×343130312² = 235476822026434688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343130311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2302814 + ... + 2302962.

It is an arithmetic number, because the mean of its divisors is an integer number (6378750).

Almost surely, 2^343130312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343130312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408240000).

343130312 is an abundant number, since it is smaller than the sum of its proper divisors (473349688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343130312 is a wasteful number, since it uses less digits than its factorization.

343130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 343130312 is about 18523.7769366833. The cubic root of 343130312 is about 700.0886363951.

Adding to 343130312 its reverse (213031343), we get a palindrome (556161655).

The spelling of 343130312 in words is "three hundred forty-three million, one hundred thirty thousand, three hundred twelve".