5318521438303 has 2 divisors, whose sum is σ = 5318521438304. Its totient is φ = 5318521438302.

The previous prime is 5318521438289. The next prime is 5318521438319. The reversal of 5318521438303 is 3038341258135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5318521438303 is a prime.

It is a super-2 number, since 2×5318521438303² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5318521438103) 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, 2659260719151 + 2659260719152.

It is an arithmetic number, because the mean of its divisors is an integer number (2659260719152).

Almost surely, 2^{5318521438303} is an apocalyptic number.

5318521438303 is a deficient number, since it is larger than the sum of its proper divisors (1).

5318521438303 is an equidigital number, since it uses as much as digits as its factorization.

5318521438303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 5318521438303 in words is "five trillion, three hundred eighteen billion, five hundred twenty-one million, four hundred thirty-eight thousand, three hundred three".