12310131066605 has 16 divisors (see below), whose sum is σ = 14798085750000. Its totient is φ = 9830834257920.

The previous prime is 12310131066601. The next prime is 12310131066659. The reversal of 12310131066605 is 50666013101321.

It can be written as a sum of positive squares in 8 ways, for example, as 1084803488521 + 11225327578084 = 1041539^2 + 3350422^2 .

It is not a de Polignac number, because 12310131066605 - 2² = 12310131066601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310131066601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5611445 + ... + 7490565.

It is an arithmetic number, because the mean of its divisors is an integer number (924880359375).

Almost surely, 2^{12310131066605} is an apocalyptic number.

It is an amenable number.

12310131066605 is a deficient number, since it is larger than the sum of its proper divisors (2487954683395).

12310131066605 is a wasteful number, since it uses less digits than its factorization.

12310131066605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881424.

The product of its (nonzero) digits is 19440, while the sum is 35.

Adding to 12310131066605 its reverse (50666013101321), we get a palindrome (62976144167926).

The spelling of 12310131066605 in words is "twelve trillion, three hundred ten billion, one hundred thirty-one million, sixty-six thousand, six hundred five".