100717381361 has 2 divisors, whose sum is σ = 100717381362. Its totient is φ = 100717381360.

The previous prime is 100717381339. The next prime is 100717381417. The reversal of 100717381361 is 163183717001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60193678336 + 40523703025 = 245344^2 + 201305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100717381361 is a prime.

It is a super-2 number, since 2×100717381361² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100717387361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50358690680 + 50358690681.

It is an arithmetic number, because the mean of its divisors is an integer number (50358690681).

Almost surely, 2^100717381361 is an apocalyptic number.

It is an amenable number.

100717381361 is a deficient number, since it is larger than the sum of its proper divisors (1).

100717381361 is an equidigital number, since it uses as much as digits as its factorization.

100717381361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 100717381361 in words is "one hundred billion, seven hundred seventeen million, three hundred eighty-one thousand, three hundred sixty-one".