12123328 has 28 divisors (see below), whose sum is σ = 27494992. Its totient is φ = 5195520.

The previous prime is 12123317. The next prime is 12123341. The reversal of 12123328 is 82332121.

12123328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 12123299 and 12123308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13083 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (981964).

Almost surely, 2^12123328 is an apocalyptic number.

It is an amenable number.

12123328 is an abundant number, since it is smaller than the sum of its proper divisors (15371664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123328 is an equidigital number, since it uses as much as digits as its factorization.

12123328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27080 (or 27070 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 12123328 is about 3481.8569758105. The cubic root of 12123328 is about 229.7244842075.

Adding to 12123328 its reverse (82332121), we get a palindrome (94455449).

The spelling of 12123328 in words is "twelve million, one hundred twenty-three thousand, three hundred twenty-eight".