201312113 has 8 divisors (see below), whose sum is σ = 220504680. Its totient is φ = 182936320.

The previous prime is 201312107. The next prime is 201312119. The reversal of 201312113 is 311213102.

It is an interprime number because it is at equal distance from previous prime (201312107) and next prime (201312119).

It can be written as a sum of positive squares in 4 ways, for example, as 20866624 + 180445489 = 4568^2 + 13433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201312113 - 2²⁰ = 200263537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201312119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203678 + ... + 204663.

It is an arithmetic number, because the mean of its divisors is an integer number (27563085).

Almost surely, 2^201312113 is an apocalyptic number.

It is an amenable number.

201312113 is a deficient number, since it is larger than the sum of its proper divisors (19192567).

201312113 is a wasteful number, since it uses less digits than its factorization.

201312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408387.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 201312113 is about 14188.4499858159. The cubic root of 201312113 is about 586.0796416274.

Adding to 201312113 its reverse (311213102), we get a palindrome (512525215).

The spelling of 201312113 in words is "two hundred one million, three hundred twelve thousand, one hundred thirteen".