12661113 has 16 divisors (see below), whose sum is σ = 17600000. Its totient is φ = 8087040.

The previous prime is 12661097. The next prime is 12661123. The reversal of 12661113 is 31116621.

12661113 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 12661113 - 2⁴ = 12661097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12661113.

It is not an unprimeable number, because it can be changed into a prime (12661123) 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 15 ways as a sum of consecutive naturals, for example, 9513 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (1100000).

Almost surely, 2^12661113 is an apocalyptic number.

It is an amenable number.

12661113 is a deficient number, since it is larger than the sum of its proper divisors (4938887).

12661113 is a wasteful number, since it uses less digits than its factorization.

12661113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its digits is 216, while the sum is 21.

The square root of 12661113 is about 3558.2457756597. The cubic root of 12661113 is about 233.0722819698.

Adding to 12661113 its reverse (31116621), we get a palindrome (43777734).

The spelling of 12661113 in words is "twelve million, six hundred sixty-one thousand, one hundred thirteen".