243303323 has 2 divisors, whose sum is σ = 243303324. Its totient is φ = 243303322.

The previous prime is 243303317. The next prime is 243303377. The reversal of 243303323 is 323303342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243303323 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (243303023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121651661 + 121651662.

It is an arithmetic number, because the mean of its divisors is an integer number (121651662).

Almost surely, 2^243303323 is an apocalyptic number.

243303323 is a deficient number, since it is larger than the sum of its proper divisors (1).

243303323 is an equidigital number, since it uses as much as digits as its factorization.

243303323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 23.

The square root of 243303323 is about 15598.1833237079. The cubic root of 243303323 is about 624.2846839223.

Adding to 243303323 its reverse (323303342), we get a palindrome (566606665).

The spelling of 243303323 in words is "two hundred forty-three million, three hundred three thousand, three hundred twenty-three".