12131541433513 has 2 divisors, whose sum is σ = 12131541433514. Its totient is φ = 12131541433512.

The previous prime is 12131541433499. The next prime is 12131541433537. The reversal of 12131541433513 is 31533414513121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8121342941209 + 4010198492304 = 2849797^2 + 2002548^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131541433513 - 2⁹ = 12131541433001 is a prime.

It is not a weakly prime, because it can be changed into another prime (12131541433213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065770716756 + 6065770716757.

It is an arithmetic number, because the mean of its divisors is an integer number (6065770716757).

Almost surely, 2^{12131541433513} is an apocalyptic number.

It is an amenable number.

12131541433513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131541433513 is an equidigital number, since it uses as much as digits as its factorization.

12131541433513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

Adding to 12131541433513 its reverse (31533414513121), we get a palindrome (43664955946634).

The spelling of 12131541433513 in words is "twelve trillion, one hundred thirty-one billion, five hundred forty-one million, four hundred thirty-three thousand, five hundred thirteen".