1313045563 has 2 divisors, whose sum is σ = 1313045564. Its totient is φ = 1313045562.

The previous prime is 1313045527. The next prime is 1313045567. The reversal of 1313045563 is 3655403131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313045563 - 2⁹ = 1313045051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313045567) 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, 656522781 + 656522782.

It is an arithmetic number, because the mean of its divisors is an integer number (656522782).

Almost surely, 2^1313045563 is an apocalyptic number.

1313045563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313045563 is an equidigital number, since it uses as much as digits as its factorization.

1313045563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1313045563 is about 36235.9705679315. The cubic root of 1313045563 is about 1095.0314657736.

Adding to 1313045563 its reverse (3655403131), we get a palindrome (4968448694).

The spelling of 1313045563 in words is "one billion, three hundred thirteen million, forty-five thousand, five hundred sixty-three".