12131144112 has 40 divisors (see below), whose sum is σ = 31355408304. Its totient is φ = 4041570304.

The previous prime is 12131144093. The next prime is 12131144119. The reversal of 12131144112 is 21144113121.

It is a super-2 number, since 2×12131144112² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12131144119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25768 + ... + 157880.

Almost surely, 2^12131144112 is an apocalyptic number.

12131144112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12131144112 is an abundant number, since it is smaller than the sum of its proper divisors (19224264192).

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

12131144112 is a wasteful number, since it uses less digits than its factorization.

12131144112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134037 (or 134031 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 12131144112 its reverse (21144113121), we get a palindrome (33275257233).

The spelling of 12131144112 in words is "twelve billion, one hundred thirty-one million, one hundred forty-four thousand, one hundred twelve".