12131320230031 has 2 divisors, whose sum is σ = 12131320230032. Its totient is φ = 12131320230030.

The previous prime is 12131320230011. The next prime is 12131320230041. The reversal of 12131320230031 is 13003202313121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12131320230031 - 2¹⁵ = 12131320197263 is a prime.

It is a super-2 number, since 2×12131320230031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12131320229984 and 12131320230011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131320230011) 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 as a sum of consecutive naturals, namely, 6065660115015 + 6065660115016.

It is an arithmetic number, because the mean of its divisors is an integer number (6065660115016).

Almost surely, 2^{12131320230031} is an apocalyptic number.

12131320230031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131320230031 is an equidigital number, since it uses as much as digits as its factorization.

12131320230031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12131320230031 its reverse (13003202313121), we get a palindrome (25134522543152).

The spelling of 12131320230031 in words is "twelve trillion, one hundred thirty-one billion, three hundred twenty million, two hundred thirty thousand, thirty-one".