1313305841 has 2 divisors, whose sum is σ = 1313305842. Its totient is φ = 1313305840.

The previous prime is 1313305781. The next prime is 1313305853. The reversal of 1313305841 is 1485033131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824895841 + 488410000 = 28721^2 + 22100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313305841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313305141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656652920 + 656652921.

It is an arithmetic number, because the mean of its divisors is an integer number (656652921).

Almost surely, 2^1313305841 is an apocalyptic number.

It is an amenable number.

1313305841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313305841 is an equidigital number, since it uses as much as digits as its factorization.

1313305841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1313305841 is about 36239.5618213024. The cubic root of 1313305841 is about 1095.1038150705.

Adding to 1313305841 its reverse (1485033131), we get a palindrome (2798338972).

The spelling of 1313305841 in words is "one billion, three hundred thirteen million, three hundred five thousand, eight hundred forty-one".