131338100717 has 2 divisors, whose sum is σ = 131338100718. Its totient is φ = 131338100716.

The previous prime is 131338100711. The next prime is 131338100771. The reversal of 131338100717 is 717001833131.

It is a happy number.

Together with next prime (131338100771) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115718350276 + 15619750441 = 340174^2 + 124979^2 .

It is a cyclic number.

It is not a de Polignac number, because 131338100717 - 2¹⁰ = 131338099693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131338100711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65669050358 + 65669050359.

It is an arithmetic number, because the mean of its divisors is an integer number (65669050359).

Almost surely, 2^131338100717 is an apocalyptic number.

It is an amenable number.

131338100717 is a deficient number, since it is larger than the sum of its proper divisors (1).

131338100717 is an equidigital number, since it uses as much as digits as its factorization.

131338100717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

Adding to 131338100717 its reverse (717001833131), we get a palindrome (848339933848).

The spelling of 131338100717 in words is "one hundred thirty-one billion, three hundred thirty-eight million, one hundred thousand, seven hundred seventeen".