12036321 has 12 divisors (see below), whose sum is σ = 18966480. Its totient is φ = 7294680.

The previous prime is 12036307. The next prime is 12036341. The reversal of 12036321 is 12363021.

It is not a de Polignac number, because 12036321 - 2⁶ = 12036257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12036294 and 12036303.

It is not an unprimeable number, because it can be changed into a prime (12036301) 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 11 ways as a sum of consecutive naturals, for example, 60691 + ... + 60888.

It is an arithmetic number, because the mean of its divisors is an integer number (1580540).

Almost surely, 2^12036321 is an apocalyptic number.

12036321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12036321 is a deficient number, since it is larger than the sum of its proper divisors (6930159).

12036321 is a wasteful number, since it uses less digits than its factorization.

12036321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121596 (or 121593 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12036321 is about 3469.3401389890. The cubic root of 12036321 is about 229.1736001135.

Adding to 12036321 its reverse (12363021), we get a palindrome (24399342).

The spelling of 12036321 in words is "twelve million, thirty-six thousand, three hundred twenty-one".