201099113 has 4 divisors (see below), whose sum is σ = 201264768. Its totient is φ = 200933460.

The previous prime is 201099091. The next prime is 201099121. The reversal of 201099113 is 311990102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311990102 = 2 ⋅155995051.

It is a cyclic number.

It is not a de Polignac number, because 201099113 - 2⁸ = 201098857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201099313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80993 + ... + 83438.

It is an arithmetic number, because the mean of its divisors is an integer number (50316192).

Almost surely, 2^201099113 is an apocalyptic number.

It is an amenable number.

201099113 is a deficient number, since it is larger than the sum of its proper divisors (165655).

201099113 is a wasteful number, since it uses less digits than its factorization.

201099113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165654.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 201099113 is about 14180.9418939646. The cubic root of 201099113 is about 585.8728664939.

The spelling of 201099113 in words is "two hundred one million, ninety-nine thousand, one hundred thirteen".