12321148 has 36 divisors (see below), whose sum is σ = 25775400. Its totient is φ = 5134752.

The previous prime is 12321137. The next prime is 12321149. The reversal of 12321148 is 84112321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321149) 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 11 ways as a sum of consecutive naturals, for example, 6403 + ... + 8101.

Almost surely, 2^12321148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12887700).

12321148 is an abundant number, since it is smaller than the sum of its proper divisors (13454252).

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

12321148 is a wasteful number, since it uses less digits than its factorization.

12321148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1745 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 12321148 is about 3510.1492845747. The cubic root of 12321148 is about 230.9672435953.

Adding to 12321148 its reverse (84112321), we get a palindrome (96433469).

The spelling of 12321148 in words is "twelve million, three hundred twenty-one thousand, one hundred forty-eight".