5315250215321 has 2 divisors, whose sum is σ = 5315250215322. Its totient is φ = 5315250215320.

The previous prime is 5315250215293. The next prime is 5315250215333. The reversal of 5315250215321 is 1235120525135.

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., 2667668890000 + 2647581325321 = 1633300^2 + 1627139^2 .

It is a cyclic number.

It is not a de Polignac number, because 5315250215321 - 2³⁴ = 5298070346137 is a prime.

It is not a weakly prime, because it can be changed into another prime (5315250215351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657625107660 + 2657625107661.

It is an arithmetic number, because the mean of its divisors is an integer number (2657625107661).

Almost surely, 2^{5315250215321} is an apocalyptic number.

It is an amenable number.

5315250215321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5315250215321 is an equidigital number, since it uses as much as digits as its factorization.

5315250215321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 5315250215321 in words is "five trillion, three hundred fifteen billion, two hundred fifty million, two hundred fifteen thousand, three hundred twenty-one".