13201603 has 4 divisors (see below), whose sum is σ = 13337800. Its totient is φ = 13065408.

The previous prime is 13201579. The next prime is 13201633. The reversal of 13201603 is 30610231.

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 13201603 - 2⁹ = 13201091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67953 + ... + 68146.

It is an arithmetic number, because the mean of its divisors is an integer number (3334450).

Almost surely, 2^13201603 is an apocalyptic number.

13201603 is a deficient number, since it is larger than the sum of its proper divisors (136197).

13201603 is an equidigital number, since it uses as much as digits as its factorization.

13201603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136196.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13201603 is about 3633.4010238343. The cubic root of 13201603 is about 236.3427164244.

Adding to 13201603 its reverse (30610231), we get a palindrome (43811834).

The spelling of 13201603 in words is "thirteen million, two hundred one thousand, six hundred three".