12326323601521 has 8 divisors (see below), whose sum is σ = 13080469177800. Its totient is φ = 11575407771648.

The previous prime is 12326323601503. The next prime is 12326323601563. The reversal of 12326323601521 is 12510632362321.

It can be written as a sum of positive squares in 4 ways, for example, as 3537826189921 + 8788497411600 = 1880911^2 + 2964540^2 .

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 12326323601521 - 2²⁵ = 12326290047089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12326323604521) 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, 807428736 + ... + 807444001.

It is an arithmetic number, because the mean of its divisors is an integer number (1635058647225).

Almost surely, 2^{12326323601521} is an apocalyptic number.

It is an amenable number.

12326323601521 is a deficient number, since it is larger than the sum of its proper divisors (754145576279).

12326323601521 is a wasteful number, since it uses less digits than its factorization.

12326323601521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614873203.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 12326323601521 its reverse (12510632362321), we get a palindrome (24836955963842).

The spelling of 12326323601521 in words is "twelve trillion, three hundred twenty-six billion, three hundred twenty-three million, six hundred one thousand, five hundred twenty-one".