13045320061 has 2 divisors, whose sum is σ = 13045320062. Its totient is φ = 13045320060.

The previous prime is 13045320037. The next prime is 13045320089. The reversal of 13045320061 is 16002354031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8732902500 + 4312417561 = 93450^2 + 65669^2 .

It is a cyclic number.

It is not a de Polignac number, because 13045320061 - 2⁷ = 13045319933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13045320011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522660030 + 6522660031.

It is an arithmetic number, because the mean of its divisors is an integer number (6522660031).

Almost surely, 2^13045320061 is an apocalyptic number.

It is an amenable number.

13045320061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13045320061 is an equidigital number, since it uses as much as digits as its factorization.

13045320061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13045320061 its reverse (16002354031), we get a palindrome (29047674092).

The spelling of 13045320061 in words is "thirteen billion, forty-five million, three hundred twenty thousand, sixty-one".