343103321 has 16 divisors (see below), whose sum is σ = 396221760. Its totient is φ = 294141120.

The previous prime is 343103317. The next prime is 343103323. The reversal of 343103321 is 123301343.

It is a cyclic number.

It is not a de Polignac number, because 343103321 - 2² = 343103317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343103293 and 343103302.

It is not an unprimeable number, because it can be changed into a prime (343103323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1211 + ... + 26223.

It is an arithmetic number, because the mean of its divisors is an integer number (24763860).

Almost surely, 2^343103321 is an apocalyptic number.

It is an amenable number.

343103321 is a deficient number, since it is larger than the sum of its proper divisors (53118439).

343103321 is a wasteful number, since it uses less digits than its factorization.

343103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25096.

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

The square root of 343103321 is about 18523.0483722307. The cubic root of 343103321 is about 700.0702793383.

Adding to 343103321 its reverse (123301343), we get a palindrome (466404664).

The spelling of 343103321 in words is "three hundred forty-three million, one hundred three thousand, three hundred twenty-one".