12441321001 has 4 divisors (see below), whose sum is σ = 12870332100. Its totient is φ = 12012309904.

The previous prime is 12441320963. The next prime is 12441321007. The reversal of 12441321001 is 10012314421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10012314421 = 139 ⋅72031039.

It can be written as a sum of positive squares in 2 ways, for example, as 9273882601 + 3167438400 = 96301^2 + 56280^2 .

It is a cyclic number.

It is not a de Polignac number, because 12441321001 - 2¹³ = 12441312809 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 12441321001.

It is not an unprimeable number, because it can be changed into a prime (12441321007) 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, 214505506 + ... + 214505563.

It is an arithmetic number, because the mean of its divisors is an integer number (3217583025).

Almost surely, 2^12441321001 is an apocalyptic number.

It is an amenable number.

12441321001 is a deficient number, since it is larger than the sum of its proper divisors (429011099).

12441321001 is an equidigital number, since it uses as much as digits as its factorization.

12441321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429011098.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12441321001 its reverse (10012314421), we get a palindrome (22453635422).

The spelling of 12441321001 in words is "twelve billion, four hundred forty-one million, three hundred twenty-one thousand, one".