12321607 has 16 divisors (see below), whose sum is σ = 13416480. Its totient is φ = 11289600.

The previous prime is 12321593. The next prime is 12321611. The reversal of 12321607 is 70612321.

It is a cyclic number.

It is not a de Polignac number, because 12321607 - 2⁷ = 12321479 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 (12321637) 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 15 ways as a sum of consecutive naturals, for example, 51007 + ... + 51247.

It is an arithmetic number, because the mean of its divisors is an integer number (838530).

Almost surely, 2^12321607 is an apocalyptic number.

12321607 is a deficient number, since it is larger than the sum of its proper divisors (1094873).

12321607 is a wasteful number, since it uses less digits than its factorization.

12321607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12321607 is about 3510.2146658004. The cubic root of 12321607 is about 230.9701116356.

Adding to 12321607 its reverse (70612321), we get a palindrome (82933928).

The spelling of 12321607 in words is "twelve million, three hundred twenty-one thousand, six hundred seven".