201317109 has 16 divisors (see below), whose sum is σ = 308060160. Its totient is φ = 114554160.

The previous prime is 201317107. The next prime is 201317117. The reversal of 201317109 is 901713102.

It is not a de Polignac number, because 201317109 - 2¹ = 201317107 is a prime.

It is a super-2 number, since 2×201317109² = 81057156752235762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201317107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15037 + ... + 25074.

It is an arithmetic number, because the mean of its divisors is an integer number (19253760).

Almost surely, 2^201317109 is an apocalyptic number.

It is an amenable number.

201317109 is a deficient number, since it is larger than the sum of its proper divisors (106743051).

201317109 is a wasteful number, since it uses less digits than its factorization.

201317109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40360.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 201317109 is about 14188.6260434194. The cubic root of 201317109 is about 586.0844898697.

The spelling of 201317109 in words is "two hundred one million, three hundred seventeen thousand, one hundred nine".