13112603 has 12 divisors (see below), whose sum is σ = 15819120. Its totient is φ = 10645776.

The previous prime is 13112587. The next prime is 13112609. The reversal of 13112603 is 30621131.

It is not a de Polignac number, because 13112603 - 2⁴ = 13112587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (1318260).

Almost surely, 2^13112603 is an apocalyptic number.

13112603 is a deficient number, since it is larger than the sum of its proper divisors (2706517).

13112603 is an equidigital number, since it uses as much as digits as its factorization.

13112603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13112603 is about 3621.1328337966. The cubic root of 13112603 is about 235.8104086340.

Adding to 13112603 its reverse (30621131), we get a palindrome (43733734).

The spelling of 13112603 in words is "thirteen million, one hundred twelve thousand, six hundred three".