1100001000173 has 2 divisors, whose sum is σ = 1100001000174. Its totient is φ = 1100001000172.

The previous prime is 1100001000169. The next prime is 1100001000193. The reversal of 1100001000173 is 3710001000011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1076941666564 + 23059333609 = 1037758^2 + 151853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100001000173 - 2² = 1100001000169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100001000113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000500086 + 550000500087.

It is an arithmetic number, because the mean of its divisors is an integer number (550000500087).

Almost surely, 2^{1100001000173} is an apocalyptic number.

It is an amenable number.

1100001000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100001000173 is an equidigital number, since it uses as much as digits as its factorization.

1100001000173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21, while the sum is 14.

Adding to 1100001000173 its reverse (3710001000011), we get a palindrome (4810002000184).

The spelling of 1100001000173 in words is "one trillion, one hundred billion, one million, one hundred seventy-three", and thus it is an aban number.