201310117 has 2 divisors, whose sum is σ = 201310118. Its totient is φ = 201310116.

The previous prime is 201310097. The next prime is 201310139. The reversal of 201310117 is 711013102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199543876 + 1766241 = 14126^2 + 1329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201310117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201310117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201310177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100655058 + 100655059.

It is an arithmetic number, because the mean of its divisors is an integer number (100655059).

Almost surely, 2^201310117 is an apocalyptic number.

It is an amenable number.

201310117 is a deficient number, since it is larger than the sum of its proper divisors (1).

201310117 is an equidigital number, since it uses as much as digits as its factorization.

201310117 is an evil number, because the sum of its binary digits is even.

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

The square root of 201310117 is about 14188.3796467391. The cubic root of 201310117 is about 586.0777046371.

Adding to 201310117 its reverse (711013102), we get a palindrome (912323219).

The spelling of 201310117 in words is "two hundred one million, three hundred ten thousand, one hundred seventeen".