12525131144 has 16 divisors (see below), whose sum is σ = 23984294400. Its totient is φ = 6129319312.

The previous prime is 12525131131. The next prime is 12525131153. The reversal of 12525131144 is 44113152521.

It is a happy number.

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, 16655384 + ... + 16656135.

It is an arithmetic number, because the mean of its divisors is an integer number (1499018400).

Almost surely, 2^12525131144 is an apocalyptic number.

It is an amenable number.

12525131144 is a deficient number, since it is larger than the sum of its proper divisors (11459163256).

12525131144 is a wasteful number, since it uses less digits than its factorization.

12525131144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33311572 (or 33311568 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

Adding to 12525131144 its reverse (44113152521), we get a palindrome (56638283665).

The spelling of 12525131144 in words is "twelve billion, five hundred twenty-five million, one hundred thirty-one thousand, one hundred forty-four".