13016603 has 4 divisors (see below), whose sum is σ = 13293600. Its totient is φ = 12739608.

The previous prime is 13016599. The next prime is 13016623. The reversal of 13016603 is 30661031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13016603 - 2² = 13016599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13016623) 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 in 3 ways as a sum of consecutive naturals, for example, 138428 + ... + 138521.

It is an arithmetic number, because the mean of its divisors is an integer number (3323400).

Almost surely, 2^13016603 is an apocalyptic number.

13016603 is a deficient number, since it is larger than the sum of its proper divisors (276997).

13016603 is an equidigital number, since it uses as much as digits as its factorization.

13016603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276996.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 13016603 is about 3607.8529626358. The cubic root of 13016603 is about 235.2335267257.

Adding to 13016603 its reverse (30661031), we get a palindrome (43677634).

The spelling of 13016603 in words is "thirteen million, sixteen thousand, six hundred three".