12613321 has 8 divisors (see below), whose sum is σ = 15174080. Its totient is φ = 10242288.

The previous prime is 12613313. The next prime is 12613327. The reversal of 12613321 is 12331621.

12613321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12613321 - 2³ = 12613313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613327) 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 7 ways as a sum of consecutive naturals, for example, 47286 + ... + 47551.

It is an arithmetic number, because the mean of its divisors is an integer number (1896760).

Almost surely, 2^12613321 is an apocalyptic number.

It is an amenable number.

12613321 is a deficient number, since it is larger than the sum of its proper divisors (2560759).

12613321 is an equidigital number, since it uses as much as digits as its factorization.

12613321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94863.

The product of its digits is 216, while the sum is 19.

The square root of 12613321 is about 3551.5237574878. The cubic root of 12613321 is about 232.7786522959.

Adding to 12613321 its reverse (12331621), we get a palindrome (24944942).

The spelling of 12613321 in words is "twelve million, six hundred thirteen thousand, three hundred twenty-one".