1320241337 has 2 divisors, whose sum is σ = 1320241338. Its totient is φ = 1320241336.

The previous prime is 1320241319. The next prime is 1320241381. The reversal of 1320241337 is 7331420231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704159296 + 616082041 = 26536^2 + 24821^2 .

It is an emirp because it is prime and its reverse (7331420231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320241337 - 2¹² = 1320237241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320247337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660120668 + 660120669.

It is an arithmetic number, because the mean of its divisors is an integer number (660120669).

Almost surely, 2^1320241337 is an apocalyptic number.

It is an amenable number.

1320241337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320241337 is an equidigital number, since it uses as much as digits as its factorization.

1320241337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 1320241337 is about 36335.1253885273. The cubic root of 1320241337 is about 1097.0281592793.

Adding to 1320241337 its reverse (7331420231), we get a palindrome (8651661568).

The spelling of 1320241337 in words is "one billion, three hundred twenty million, two hundred forty-one thousand, three hundred thirty-seven".