13111306 has 16 divisors (see below), whose sum is σ = 21911400. Its totient is φ = 5842368.

The previous prime is 13111303. The next prime is 13111309. The reversal of 13111306 is 60311131.

It is an interprime number because it is at equal distance from previous prime (13111303) and next prime (13111309).

It can be written as a sum of positive squares in 4 ways, for example, as 10017225 + 3094081 = 3165^2 + 1759^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13111306.

It is not an unprimeable number, because it can be changed into a prime (13111303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941 + ... + 9448.

Almost surely, 2^13111306 is an apocalyptic number.

13111306 is a deficient number, since it is larger than the sum of its proper divisors (8800094).

13111306 is a wasteful number, since it uses less digits than its factorization.

13111306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17433.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13111306 is about 3620.9537417647. The cubic root of 13111306 is about 235.8026335140.

Adding to 13111306 its reverse (60311131), we get a palindrome (73422437).

The spelling of 13111306 in words is "thirteen million, one hundred eleven thousand, three hundred six".