12131243124 has 96 divisors (see below), whose sum is σ = 38005610496. Its totient is φ = 2908586880.

The previous prime is 12131243099. The next prime is 12131243143. The reversal of 12131243124 is 42134213121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12131243094 and 12131243103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492952 + ... + 516975.

It is an arithmetic number, because the mean of its divisors is an integer number (395891776).

Almost surely, 2^12131243124 is an apocalyptic number.

12131243124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12131243124 is an abundant number, since it is smaller than the sum of its proper divisors (25874367372).

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

12131243124 is a wasteful number, since it uses less digits than its factorization.

12131243124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009965 (or 1009963 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 12131243124 its reverse (42134213121), we get a palindrome (54265456245).

It can be divided in two parts, 12131 and 243124, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 12131243124 in words is "twelve billion, one hundred thirty-one million, two hundred forty-three thousand, one hundred twenty-four".