1323330247 has 2 divisors, whose sum is σ = 1323330248. Its totient is φ = 1323330246.

The previous prime is 1323330223. The next prime is 1323330287. The reversal of 1323330247 is 7420333231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323330247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323330287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661665123 + 661665124.

It is an arithmetic number, because the mean of its divisors is an integer number (661665124).

Almost surely, 2^1323330247 is an apocalyptic number.

1323330247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323330247 is an equidigital number, since it uses as much as digits as its factorization.

1323330247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 1323330247 is about 36377.6063945939. The cubic root of 1323330247 is about 1097.8830489248.

Adding to 1323330247 its reverse (7420333231), we get a palindrome (8743663478).

The spelling of 1323330247 in words is "one billion, three hundred twenty-three million, three hundred thirty thousand, two hundred forty-seven".