12131041131 has 48 divisors (see below), whose sum is σ = 20144592000. Its totient is φ = 6957256320.

The previous prime is 12131041129. The next prime is 12131041151. The reversal of 12131041131 is 13114013121.

It is a happy number.

12131041131 is a `hidden beast` number, since 1 + 213 + 10 + 411 + 31 = 666.

It is not a de Polignac number, because 12131041131 - 2¹ = 12131041129 is a prime.

It is a super-2 number, since 2×12131041131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12131041121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1913575 + ... + 1919903.

It is an arithmetic number, because the mean of its divisors is an integer number (419679000).

Almost surely, 2^12131041131 is an apocalyptic number.

12131041131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12131041131 is a deficient number, since it is larger than the sum of its proper divisors (8013550869).

12131041131 is a wasteful number, since it uses less digits than its factorization.

12131041131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384 (or 7381 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12131041131 its reverse (13114013121), we get a palindrome (25245054252).

The spelling of 12131041131 in words is "twelve billion, one hundred thirty-one million, forty-one thousand, one hundred thirty-one".