13112005 has 16 divisors (see below), whose sum is σ = 16257024. Its totient is φ = 10145920.

The previous prime is 13111961. The next prime is 13112051. The reversal of 13112005 is 50021131.

13112005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13112005 - 2⁷ = 13111877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34044 + ... + 34426.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^13112005 is an apocalyptic number.

It is an amenable number.

13112005 is a deficient number, since it is larger than the sum of its proper divisors (3145019).

13112005 is a wasteful number, since it uses less digits than its factorization.

13112005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 13112005 is about 3621.0502620096. The cubic root of 13112005 is about 235.8068238698.

Adding to 13112005 its reverse (50021131), we get a palindrome (63133136).

The spelling of 13112005 in words is "thirteen million, one hundred twelve thousand, five".