131200117 has 2 divisors, whose sum is σ = 131200118. Its totient is φ = 131200116.

The previous prime is 131200109. The next prime is 131200141. The reversal of 131200117 is 711002131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130736356 + 463761 = 11434^2 + 681^2 .

It is a cyclic number.

It is not a de Polignac number, because 131200117 - 2³ = 131200109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131200117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131200417) 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, 65600058 + 65600059.

It is an arithmetic number, because the mean of its divisors is an integer number (65600059).

Almost surely, 2^131200117 is an apocalyptic number.

It is an amenable number.

131200117 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200117 is an equidigital number, since it uses as much as digits as its factorization.

131200117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 131200117 is about 11454.2619578915. The cubic root of 131200117 is about 508.1337881548.

Adding to 131200117 its reverse (711002131), we get a palindrome (842202248).

The spelling of 131200117 in words is "one hundred thirty-one million, two hundred thousand, one hundred seventeen".