343234321 has 2 divisors, whose sum is σ = 343234322. Its totient is φ = 343234320.

The previous prime is 343234319. The next prime is 343234327. The reversal of 343234321 is 123432343.

343234321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190440000 + 152794321 = 13800^2 + 12361^2 .

It is a cyclic number.

It is not a de Polignac number, because 343234321 - 2¹ = 343234319 is a prime.

It is a super-2 number, since 2×343234321² = 235619598224662082, which contains 22 as substring.

Together with 343234319, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (343234327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171617160 + 171617161.

It is an arithmetic number, because the mean of its divisors is an integer number (171617161).

Almost surely, 2^343234321 is an apocalyptic number.

It is an amenable number.

343234321 is a deficient number, since it is larger than the sum of its proper divisors (1).

343234321 is an equidigital number, since it uses as much as digits as its factorization.

343234321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 25.

The square root of 343234321 is about 18526.5841697815. The cubic root of 343234321 is about 700.1593657560.

Adding to 343234321 its reverse (123432343), we get a palindrome (466666664).

The spelling of 343234321 in words is "three hundred forty-three million, two hundred thirty-four thousand, three hundred twenty-one".