11100112109173 has 2 divisors, whose sum is σ = 11100112109174. Its totient is φ = 11100112109172.

The previous prime is 11100112109161. The next prime is 11100112109183. The reversal of 11100112109173 is 37190121100111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6063108426244 + 5037003682929 = 2462338^2 + 2244327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100112109173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100112109123) 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, 5550056054586 + 5550056054587.

It is an arithmetic number, because the mean of its divisors is an integer number (5550056054587).

Almost surely, 2^{11100112109173} is an apocalyptic number.

It is an amenable number.

11100112109173 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100112109173 is an equidigital number, since it uses as much as digits as its factorization.

11100112109173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 28.

Adding to 11100112109173 its reverse (37190121100111), we get a palindrome (48290233209284).

The spelling of 11100112109173 in words is "eleven trillion, one hundred billion, one hundred twelve million, one hundred nine thousand, one hundred seventy-three".