12412321 has 8 divisors (see below), whose sum is σ = 12602304. Its totient is φ = 12223920.

The previous prime is 12412313. The next prime is 12412333. The reversal of 12412321 is 12321421.

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

It is a cyclic number.

It is not a de Polignac number, because 12412321 - 2³ = 12412313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12412295 and 12412304.

It is not an unprimeable number, because it can be changed into a prime (12412391) 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 7 ways as a sum of consecutive naturals, for example, 33091 + ... + 33463.

It is an arithmetic number, because the mean of its divisors is an integer number (1575288).

Almost surely, 2^12412321 is an apocalyptic number.

It is an amenable number.

12412321 is a deficient number, since it is larger than the sum of its proper divisors (189983).

12412321 is a wasteful number, since it uses less digits than its factorization.

12412321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 96, while the sum is 16.

The square root of 12412321 is about 3523.1124024078. The cubic root of 12412321 is about 231.5355415050.

Adding to 12412321 its reverse (12321421), we get a palindrome (24733742).

The spelling of 12412321 in words is "twelve million, four hundred twelve thousand, three hundred twenty-one".