12321007 has 8 divisors (see below), whose sum is σ = 12486960. Its totient is φ = 12156480.

The previous prime is 12320999. The next prime is 12321011. The reversal of 12321007 is 70012321.

It is a happy number.

12321007 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12321007 - 2³ = 12320999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321017) 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, 43707 + ... + 43987.

It is an arithmetic number, because the mean of its divisors is an integer number (1560870).

Almost surely, 2^12321007 is an apocalyptic number.

12321007 is a deficient number, since it is larger than the sum of its proper divisors (165953).

12321007 is a wasteful number, since it uses less digits than its factorization.

12321007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12321007 is about 3510.1291999013. The cubic root of 12321007 is about 230.9663625490.

Adding to 12321007 its reverse (70012321), we get a palindrome (82333328).

The spelling of 12321007 in words is "twelve million, three hundred twenty-one thousand, seven".