1310500045321 has 2 divisors, whose sum is σ = 1310500045322. Its totient is φ = 1310500045320.

The previous prime is 1310500045219. The next prime is 1310500045339. The reversal of 1310500045321 is 1235400050131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837107884096 + 473392161225 = 914936^2 + 688035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310500045321 - 2¹⁵ = 1310500012553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310500042321) 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, 655250022660 + 655250022661.

It is an arithmetic number, because the mean of its divisors is an integer number (655250022661).

Almost surely, 2^{1310500045321} is an apocalyptic number.

It is an amenable number.

1310500045321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310500045321 is an equidigital number, since it uses as much as digits as its factorization.

1310500045321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 1310500045321 its reverse (1235400050131), we get a palindrome (2545900095452).

The spelling of 1310500045321 in words is "one trillion, three hundred ten billion, five hundred million, forty-five thousand, three hundred twenty-one".