12131303131 has 8 divisors (see below), whose sum is σ = 12245211440. Its totient is φ = 12017442528.

The previous prime is 12131303111. The next prime is 12131303137. The reversal of 12131303131 is 13130313121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12131303131 - 2⁵ = 12131303099 is a prime.

It is a super-2 number, since 2×12131303131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12131303099 and 12131303108.

It is not an unprimeable number, because it can be changed into a prime (12131303137) 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, 691885 + ... + 709201.

It is an arithmetic number, because the mean of its divisors is an integer number (1530651430).

Almost surely, 2^12131303131 is an apocalyptic number.

12131303131 is a deficient number, since it is larger than the sum of its proper divisors (113908309).

12131303131 is a wasteful number, since it uses less digits than its factorization.

12131303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23853.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 12131303131 its reverse (13130313121), we get a palindrome (25261616252).

The spelling of 12131303131 in words is "twelve billion, one hundred thirty-one million, three hundred three thousand, one hundred thirty-one".