12541440424 has 16 divisors (see below), whose sum is σ = 23900696820. Its totient is φ = 6167921280.

The previous prime is 12541440397. The next prime is 12541440451. The reversal of 12541440424 is 42404414521.

12541440424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12541440397) and next prime (12541440451).

It can be written as a sum of positive squares in 2 ways, for example, as 11021220324 + 1520220100 = 104982^2 + 38990^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12849349 + ... + 12850324.

Almost surely, 2^12541440424 is an apocalyptic number.

It is an amenable number.

12541440424 is a deficient number, since it is larger than the sum of its proper divisors (11359256396).

12541440424 is a wasteful number, since it uses less digits than its factorization.

12541440424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25699740 (or 25699736 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 12541440424 its reverse (42404414521), we get a palindrome (54945854945).

The spelling of 12541440424 in words is "twelve billion, five hundred forty-one million, four hundred forty thousand, four hundred twenty-four".