12321206630641 has 4 divisors (see below), whose sum is σ = 12394986311232. Its totient is φ = 12247426950052.

The previous prime is 12321206630597. The next prime is 12321206630647. The reversal of 12321206630641 is 14603660212321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12321206630641 - 2¹⁹ = 12321206106353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12321206630641.

It is not an unprimeable number, because it can be changed into a prime (12321206630647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36889840045 + ... + 36889840378.

It is an arithmetic number, because the mean of its divisors is an integer number (3098746577808).

Almost surely, 2^{12321206630641} is an apocalyptic number.

It is an amenable number.

12321206630641 is a deficient number, since it is larger than the sum of its proper divisors (73779680591).

12321206630641 is an equidigital number, since it uses as much as digits as its factorization.

12321206630641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73779680590.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 12321206630641 its reverse (14603660212321), we get a palindrome (26924866842962).

The spelling of 12321206630641 in words is "twelve trillion, three hundred twenty-one billion, two hundred six million, six hundred thirty thousand, six hundred forty-one".