12115321 has 8 divisors (see below), whose sum is σ = 12294144. Its totient is φ = 11938080.

The previous prime is 12115309. The next prime is 12115333. The reversal of 12115321 is 12351121.

It is an interprime number because it is at equal distance from previous prime (12115309) and next prime (12115333).

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 12115321 - 2⁷ = 12115193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12115295 and 12115304.

It is not an unprimeable number, because it can be changed into a prime (12115351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25936 + ... + 26398.

It is an arithmetic number, because the mean of its divisors is an integer number (1536768).

Almost surely, 2^12115321 is an apocalyptic number.

It is an amenable number.

12115321 is a deficient number, since it is larger than the sum of its proper divisors (178823).

12115321 is a wasteful number, since it uses less digits than its factorization.

12115321 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 60, while the sum is 16.

The square root of 12115321 is about 3480.7069684189. The cubic root of 12115321 is about 229.6738982891.

Adding to 12115321 its reverse (12351121), we get a palindrome (24466442).

The spelling of 12115321 in words is "twelve million, one hundred fifteen thousand, three hundred twenty-one".