12261113 has 4 divisors (see below), whose sum is σ = 12683940. Its totient is φ = 11838288.

The previous prime is 12261101. The next prime is 12261127. The reversal of 12261113 is 31116221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31116221 = 337 ⋅92333.

It can be written as a sum of positive squares in 2 ways, for example, as 3717184 + 8543929 = 1928^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 12261113 - 2¹⁶ = 12195577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12261091 and 12261100.

It is not an unprimeable number, because it can be changed into a prime (12261133) 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, 211370 + ... + 211427.

It is an arithmetic number, because the mean of its divisors is an integer number (3170985).

Almost surely, 2^12261113 is an apocalyptic number.

It is an amenable number.

12261113 is a deficient number, since it is larger than the sum of its proper divisors (422827).

12261113 is an equidigital number, since it uses as much as digits as its factorization.

12261113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422826.

The product of its digits is 72, while the sum is 17.

The square root of 12261113 is about 3501.5872115371. The cubic root of 12261113 is about 230.5915020763.

Adding to 12261113 its reverse (31116221), we get a palindrome (43377334).

The spelling of 12261113 in words is "twelve million, two hundred sixty-one thousand, one hundred thirteen".