12131310204 has 144 divisors (see below), whose sum is σ = 33620880384. Its totient is φ = 3665692800.

The previous prime is 12131310203. The next prime is 12131310223. The reversal of 12131310204 is 40201313121.

12131310204 is a `hidden beast` number, since 121 + 31 + 310 + 204 = 666.

12131310204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131310203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10997917 + ... + 10999019.

It is an arithmetic number, because the mean of its divisors is an integer number (233478336).

Almost surely, 2^12131310204 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 12131310204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16810440192).

12131310204 is an abundant number, since it is smaller than the sum of its proper divisors (21489570180).

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

12131310204 is a wasteful number, since it uses less digits than its factorization.

12131310204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12131310204 its reverse (40201313121), we get a palindrome (52332623325).

The spelling of 12131310204 in words is "twelve billion, one hundred thirty-one million, three hundred ten thousand, two hundred four".