12321501 has 16 divisors (see below), whose sum is σ = 16972800. Its totient is φ = 7946928.

The previous prime is 12321499. The next prime is 12321511. The reversal of 12321501 is 10512321.

12321501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12321501 - 2¹ = 12321499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11340 + ... + 12378.

It is an arithmetic number, because the mean of its divisors is an integer number (1060800).

Almost surely, 2^12321501 is an apocalyptic number.

It is an amenable number.

12321501 is a deficient number, since it is larger than the sum of its proper divisors (4651299).

12321501 is a wasteful number, since it uses less digits than its factorization.

12321501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12321501 is about 3510.1995669762. The cubic root of 12321501 is about 230.9694493058.

Adding to 12321501 its reverse (10512321), we get a palindrome (22833822).

The spelling of 12321501 in words is "twelve million, three hundred twenty-one thousand, five hundred one".