12131144132 has 12 divisors (see below), whose sum is σ = 21264830076. Its totient is φ = 6055478400.

The previous prime is 12131144131. The next prime is 12131144147. The reversal of 12131144132 is 23144113121.

It can be written as a sum of positive squares in 2 ways, for example, as 7934177476 + 4196966656 = 89074^2 + 64784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12131144098 and 12131144107.

It is not an unprimeable number, because it can be changed into a prime (12131144131) 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, 2520713 + ... + 2525520.

It is an arithmetic number, because the mean of its divisors is an integer number (1772069173).

Almost surely, 2^12131144132 is an apocalyptic number.

It is an amenable number.

12131144132 is a deficient number, since it is larger than the sum of its proper divisors (9133685944).

12131144132 is a wasteful number, since it uses less digits than its factorization.

12131144132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046838 (or 5046836 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 12131144132 its reverse (23144113121), we get a palindrome (35275257253).

The spelling of 12131144132 in words is "twelve billion, one hundred thirty-one million, one hundred forty-four thousand, one hundred thirty-two".