13131120944677 has 2 divisors, whose sum is σ = 13131120944678. Its totient is φ = 13131120944676.

The previous prime is 13131120944671. The next prime is 13131120944723. The reversal of 13131120944677 is 77644902113131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10913779567201 + 2217341377476 = 3303601^2 + 1489074^2 .

It is an emirp because it is prime and its reverse (77644902113131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13131120944677 - 2²³ = 13131112556069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13131120944677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131120944671) 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, 6565560472338 + 6565560472339.

It is an arithmetic number, because the mean of its divisors is an integer number (6565560472339).

Almost surely, 2^{13131120944677} is an apocalyptic number.

It is an amenable number.

13131120944677 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131120944677 is an equidigital number, since it uses as much as digits as its factorization.

13131120944677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 13131120944677 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty million, nine hundred forty-four thousand, six hundred seventy-seven".