100101660173 has 2 divisors, whose sum is σ = 100101660174. Its totient is φ = 100101660172.

The previous prime is 100101660137. The next prime is 100101660181. The reversal of 100101660173 is 371066101001.

Together with previous prime (100101660137) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87697715044 + 12403945129 = 296138^2 + 111373^2 .

It is an emirp because it is prime and its reverse (371066101001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100101660173 - 2¹⁸ = 100101398029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100101660973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050830086 + 50050830087.

It is an arithmetic number, because the mean of its divisors is an integer number (50050830087).

Almost surely, 2^100101660173 is an apocalyptic number.

It is an amenable number.

100101660173 is a deficient number, since it is larger than the sum of its proper divisors (1).

100101660173 is an equidigital number, since it uses as much as digits as its factorization.

100101660173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 100101660173 its reverse (371066101001), we get a palindrome (471167761174).

The spelling of 100101660173 in words is "one hundred billion, one hundred one million, six hundred sixty thousand, one hundred seventy-three".