201100117 has 2 divisors, whose sum is σ = 201100118. Its totient is φ = 201100116.

The previous prime is 201100099. The next prime is 201100129. The reversal of 201100117 is 711001102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154778481 + 46321636 = 12441^2 + 6806^2 .

It is a cyclic number.

It is not a de Polignac number, because 201100117 - 2¹¹ = 201098069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201100097 and 201100106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201100147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550058 + 100550059.

It is an arithmetic number, because the mean of its divisors is an integer number (100550059).

Almost surely, 2^201100117 is an apocalyptic number.

It is an amenable number.

201100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100117 is an equidigital number, since it uses as much as digits as its factorization.

201100117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 201100117 is about 14180.9772935436. The cubic root of 201100117 is about 585.8738414947.

Adding to 201100117 its reverse (711001102), we get a palindrome (912101219).

The spelling of 201100117 in words is "two hundred one million, one hundred thousand, one hundred seventeen".