13105211 has 4 divisors (see below), whose sum is σ = 14977392. Its totient is φ = 11233032.

The previous prime is 13105207. The next prime is 13105217. The reversal of 13105211 is 11250131.

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 13105211 - 2² = 13105207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13105217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936080 + ... + 936093.

It is an arithmetic number, because the mean of its divisors is an integer number (3744348).

Almost surely, 2^13105211 is an apocalyptic number.

13105211 is a deficient number, since it is larger than the sum of its proper divisors (1872181).

13105211 is an equidigital number, since it uses as much as digits as its factorization.

13105211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872180.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 13105211 is about 3620.1120148415. The cubic root of 13105211 is about 235.7660889772.

Adding to 13105211 its reverse (11250131), we get a palindrome (24355342).

The spelling of 13105211 in words is "thirteen million, one hundred five thousand, two hundred eleven".