12133321 has 2 divisors, whose sum is σ = 12133322. Its totient is φ = 12133320.

The previous prime is 12133309. The next prime is 12133333. The reversal of 12133321 is 12333121.

12133321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12133309) and next prime (12133333).

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 436921 = 3420^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133321 - 2⁷ = 12133193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12133295 and 12133304.

It is not a weakly prime, because it can be changed into another prime (12133301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066660 + 6066661.

It is an arithmetic number, because the mean of its divisors is an integer number (6066661).

Almost surely, 2^12133321 is an apocalyptic number.

It is an amenable number.

12133321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133321 is an equidigital number, since it uses as much as digits as its factorization.

12133321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 16.

The square root of 12133321 is about 3483.2916903412. The cubic root of 12133321 is about 229.7875858661.

Adding to 12133321 its reverse (12333121), we get a palindrome (24466442).

The spelling of 12133321 in words is "twelve million, one hundred thirty-three thousand, three hundred twenty-one".