1320333247 has 2 divisors, whose sum is σ = 1320333248. Its totient is φ = 1320333246.

The previous prime is 1320333187. The next prime is 1320333263. The reversal of 1320333247 is 7423330231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320333247 - 2¹⁵ = 1320300479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320333277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660166623 + 660166624.

It is an arithmetic number, because the mean of its divisors is an integer number (660166624).

Almost surely, 2^1320333247 is an apocalyptic number.

1320333247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320333247 is an equidigital number, since it uses as much as digits as its factorization.

1320333247 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1320333247 is about 36336.3901206490. The cubic root of 1320333247 is about 1097.0536156146.

Adding to 1320333247 its reverse (7423330231), we get a palindrome (8743663478).

The spelling of 1320333247 in words is "one billion, three hundred twenty million, three hundred thirty-three thousand, two hundred forty-seven".