201313281 has 8 divisors (see below), whose sum is σ = 289065280. Its totient is φ = 123885072.

The previous prime is 201313279. The next prime is 201313309. The reversal of 201313281 is 182313102.

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

It is not a de Polignac number, because 201313281 - 2¹ = 201313279 is a prime.

It is a super-2 number, since 2×201313281² = 81054074213969922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201313241) 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, 2580901 + ... + 2580978.

It is an arithmetic number, because the mean of its divisors is an integer number (36133160).

Almost surely, 2^201313281 is an apocalyptic number.

It is an amenable number.

201313281 is a deficient number, since it is larger than the sum of its proper divisors (87751999).

201313281 is a wasteful number, since it uses less digits than its factorization.

201313281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161895.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 201313281 is about 14188.4911459958. The cubic root of 201313281 is about 586.0807750908.

Adding to 201313281 its reverse (182313102), we get a palindrome (383626383).

The spelling of 201313281 in words is "two hundred one million, three hundred thirteen thousand, two hundred eighty-one".