12113123 has 4 divisors (see below), whose sum is σ = 13214328. Its totient is φ = 11011920.

The previous prime is 12113119. The next prime is 12113147. The reversal of 12113123 is 32131121.

12113123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12113123 - 2² = 12113119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12113098 and 12113107.

It is not an unprimeable number, because it can be changed into a prime (12113183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550586 + ... + 550607.

It is an arithmetic number, because the mean of its divisors is an integer number (3303582).

Almost surely, 2^12113123 is an apocalyptic number.

12113123 is a deficient number, since it is larger than the sum of its proper divisors (1101205).

12113123 is a wasteful number, since it uses less digits than its factorization.

12113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101204.

The product of its digits is 36, while the sum is 14.

The square root of 12113123 is about 3480.3912136425. The cubic root of 12113123 is about 229.6600080598.

Adding to 12113123 its reverse (32131121), we get a palindrome (44244244).

It can be divided in two parts, 1211 and 3123, that added together give a palindrome (4334).

The spelling of 12113123 in words is "twelve million, one hundred thirteen thousand, one hundred twenty-three".