13122603 has 24 divisors (see below), whose sum is σ = 20769840. Its totient is φ = 7934400.

The previous prime is 13122601. The next prime is 13122607. The reversal of 13122603 is 30622131.

It is not a de Polignac number, because 13122603 - 2¹ = 13122601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13122601) 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 23 ways as a sum of consecutive naturals, for example, 5953 + ... + 7853.

It is an arithmetic number, because the mean of its divisors is an integer number (865410).

Almost surely, 2^13122603 is an apocalyptic number.

13122603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13122603 is a deficient number, since it is larger than the sum of its proper divisors (7647237).

13122603 is a wasteful number, since it uses less digits than its factorization.

13122603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1976 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13122603 is about 3622.5133540127. The cubic root of 13122603 is about 235.8703383797.

Adding to 13122603 its reverse (30622131), we get a palindrome (43744734).

The spelling of 13122603 in words is "thirteen million, one hundred twenty-two thousand, six hundred three".