12531141444 has 12 divisors (see below), whose sum is σ = 29239330064. Its totient is φ = 4177047144.

The previous prime is 12531141437. The next prime is 12531141479. The reversal of 12531141444 is 44414113521.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522130882 + ... + 522130905.

Almost surely, 2^12531141444 is an apocalyptic number.

It is an amenable number.

12531141444 is an abundant number, since it is smaller than the sum of its proper divisors (16708188620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12531141444 is a wasteful number, since it uses less digits than its factorization.

12531141444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044261794 (or 1044261792 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

Adding to 12531141444 its reverse (44414113521), we get a palindrome (56945254965).

The spelling of 12531141444 in words is "twelve billion, five hundred thirty-one million, one hundred forty-one thousand, four hundred forty-four".