13024321 has 2 divisors, whose sum is σ = 13024322. Its totient is φ = 13024320.

The previous prime is 13024307. The next prime is 13024337. The reversal of 13024321 is 12342031.

It is a happy number.

It is an a-pointer prime, because the next prime (13024337) can be obtained adding 13024321 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7075600 + 5948721 = 2660^2 + 2439^2 .

It is a cyclic number.

It is not a de Polignac number, because 13024321 - 2⁹ = 13023809 is a prime.

It is a super-2 number, since 2×13024321² = 339265875022082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13024295 and 13024304.

It is not a weakly prime, because it can be changed into another prime (13024391) 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 as a sum of consecutive naturals, namely, 6512160 + 6512161.

It is an arithmetic number, because the mean of its divisors is an integer number (6512161).

Almost surely, 2^13024321 is an apocalyptic number.

It is an amenable number.

13024321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13024321 is an equidigital number, since it uses as much as digits as its factorization.

13024321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13024321 is about 3608.9224153478. The cubic root of 13024321 is about 235.2800102731.

Adding to 13024321 its reverse (12342031), we get a palindrome (25366352).

The spelling of 13024321 in words is "thirteen million, twenty-four thousand, three hundred twenty-one".