12441253521 has 16 divisors (see below), whose sum is σ = 16722153728. Its totient is φ = 8227440000.

The previous prime is 12441253483. The next prime is 12441253577. The reversal of 12441253521 is 12535214421.

It is not a de Polignac number, because 12441253521 - 2⁹ = 12441253009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12441253421) 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, 261096 + ... + 305046.

It is an arithmetic number, because the mean of its divisors is an integer number (1045134608).

Almost surely, 2^12441253521 is an apocalyptic number.

It is an amenable number.

12441253521 is a deficient number, since it is larger than the sum of its proper divisors (4280900207).

12441253521 is a wasteful number, since it uses less digits than its factorization.

12441253521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44712.

The product of its digits is 9600, while the sum is 30.

Adding to 12441253521 its reverse (12535214421), we get a palindrome (24976467942).

The spelling of 12441253521 in words is "twelve billion, four hundred forty-one million, two hundred fifty-three thousand, five hundred twenty-one".