343130221 has 8 divisors (see below), whose sum is σ = 400492800. Its totient is φ = 287853648.

The previous prime is 343130219. The next prime is 343130231. The reversal of 343130221 is 122031343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343130221 - 2¹ = 343130219 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 (343130231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521146 + ... + 521803.

It is an arithmetic number, because the mean of its divisors is an integer number (50061600).

Almost surely, 2^343130221 is an apocalyptic number.

It is an amenable number.

343130221 is a deficient number, since it is larger than the sum of its proper divisors (57362579).

343130221 is a wasteful number, since it uses less digits than its factorization.

343130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043003.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 343130221 is about 18523.7744803806. The cubic root of 343130221 is about 700.0885745060.

Adding to 343130221 its reverse (122031343), we get a palindrome (465161564).

The spelling of 343130221 in words is "three hundred forty-three million, one hundred thirty thousand, two hundred twenty-one".