13316503 has 2 divisors, whose sum is σ = 13316504. Its totient is φ = 13316502.

The previous prime is 13316497. The next prime is 13316507. The reversal of 13316503 is 30561331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13316503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13316507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658251 + 6658252.

It is an arithmetic number, because the mean of its divisors is an integer number (6658252).

Almost surely, 2^13316503 is an apocalyptic number.

13316503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13316503 is an equidigital number, since it uses as much as digits as its factorization.

13316503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 13316503 is about 3649.1784006814. The cubic root of 13316503 is about 237.0264054564.

Adding to 13316503 its reverse (30561331), we get a palindrome (43877834).

The spelling of 13316503 in words is "thirteen million, three hundred sixteen thousand, five hundred three".