13318603 has 2 divisors, whose sum is σ = 13318604. Its totient is φ = 13318602.

The previous prime is 13318597. The next prime is 13318607. The reversal of 13318603 is 30681331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13318603 - 2⁹ = 13318091 is a prime.

It is not a weakly prime, because it can be changed into another prime (13318607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659301 + 6659302.

It is an arithmetic number, because the mean of its divisors is an integer number (6659302).

Almost surely, 2^13318603 is an apocalyptic number.

13318603 is a deficient number, since it is larger than the sum of its proper divisors (1).

13318603 is an equidigital number, since it uses as much as digits as its factorization.

13318603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13318603 is about 3649.4661253394. The cubic root of 13318603 is about 237.0388644152.

Adding to 13318603 its reverse (30681331), we get a palindrome (43999934).

The spelling of 13318603 in words is "thirteen million, three hundred eighteen thousand, six hundred three".