12131210120 has 16 divisors (see below), whose sum is σ = 27295222860. Its totient is φ = 4852484032.

The previous prime is 12131210101. The next prime is 12131210141. The reversal of 12131210120 is 2101213121.

It can be written as a sum of positive squares in 2 ways, for example, as 11789182084 + 342028036 = 108578^2 + 18494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12131210095 and 12131210104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151640087 + ... + 151640166.

Almost surely, 2^12131210120 is an apocalyptic number.

12131210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131210120 is an abundant number, since it is smaller than the sum of its proper divisors (15164012740).

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

12131210120 is a wasteful number, since it uses less digits than its factorization.

12131210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303280264 (or 303280260 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12131210120 its reverse (2101213121), we get a palindrome (14232423241).

The spelling of 12131210120 in words is "twelve billion, one hundred thirty-one million, two hundred ten thousand, one hundred twenty".