12131313424 has 80 divisors (see below), whose sum is σ = 25638180480. Its totient is φ = 5538355200.

The previous prime is 12131313353. The next prime is 12131313443. The reversal of 12131313424 is 42431313121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1762662 + ... + 1769530.

It is an arithmetic number, because the mean of its divisors is an integer number (320477256).

Almost surely, 2^12131313424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12131313424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12819090240).

12131313424 is an abundant number, since it is smaller than the sum of its proper divisors (13506867056).

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

12131313424 is a wasteful number, since it uses less digits than its factorization.

12131313424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088 (or 7082 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 12131313424 its reverse (42431313121), we get a palindrome (54562626545).

The spelling of 12131313424 in words is "twelve billion, one hundred thirty-one million, three hundred thirteen thousand, four hundred twenty-four".