12131325044 has 12 divisors (see below), whose sum is σ = 21249249924. Its totient is φ = 6060110784.

The previous prime is 12131325007. The next prime is 12131325049. The reversal of 12131325044 is 44052313121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8260992100 + 3870332944 = 90890^2 + 62212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131325049) 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, 1383017 + ... + 1391760.

It is an arithmetic number, because the mean of its divisors is an integer number (1770770827).

Almost surely, 2^12131325044 is an apocalyptic number.

It is an amenable number.

12131325044 is a deficient number, since it is larger than the sum of its proper divisors (9117924880).

12131325044 is a wasteful number, since it uses less digits than its factorization.

12131325044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775874 (or 2775872 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12131325044 its reverse (44052313121), we get a palindrome (56183638165).

The spelling of 12131325044 in words is "twelve billion, one hundred thirty-one million, three hundred twenty-five thousand, forty-four".