343243223 has 2 divisors, whose sum is σ = 343243224. Its totient is φ = 343243222.

The previous prime is 343243213. The next prime is 343243249. The reversal of 343243223 is 322342343.

It is an a-pointer prime, because the next prime (343243249) can be obtained adding 343243223 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343243223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343243192 and 343243201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343243213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171621611 + 171621612.

It is an arithmetic number, because the mean of its divisors is an integer number (171621612).

Almost surely, 2^343243223 is an apocalyptic number.

343243223 is a deficient number, since it is larger than the sum of its proper divisors (1).

343243223 is an equidigital number, since it uses as much as digits as its factorization.

343243223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 26.

The square root of 343243223 is about 18526.8244175844. The cubic root of 343243223 is about 700.1654187295.

Adding to 343243223 its reverse (322342343), we get a palindrome (665585566).

The spelling of 343243223 in words is "three hundred forty-three million, two hundred forty-three thousand, two hundred twenty-three".