201113197 has 4 divisors (see below), whose sum is σ = 202463100. Its totient is φ = 199763296.

The previous prime is 201113191. The next prime is 201113203. The reversal of 201113197 is 791311102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201113191) and next prime (201113203).

It can be written as a sum of positive squares in 2 ways, for example, as 49970761 + 151142436 = 7069^2 + 12294^2 .

It is a cyclic number.

It is not a de Polignac number, because 201113197 - 2³ = 201113189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201113191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674728 + ... + 675025.

It is an arithmetic number, because the mean of its divisors is an integer number (50615775).

Almost surely, 2^201113197 is an apocalyptic number.

It is an amenable number.

201113197 is a deficient number, since it is larger than the sum of its proper divisors (1349903).

201113197 is a wasteful number, since it uses less digits than its factorization.

201113197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349902.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 201113197 is about 14181.4384672360. The cubic root of 201113197 is about 585.8865433996.

Adding to 201113197 its reverse (791311102), we get a palindrome (992424299).

The spelling of 201113197 in words is "two hundred one million, one hundred thirteen thousand, one hundred ninety-seven".