201123201 has 16 divisors (see below), whose sum is σ = 280912896. Its totient is φ = 127753296.

The previous prime is 201123187. The next prime is 201123229. The reversal of 201123201 is 102321102.

It is not a de Polignac number, because 201123201 - 2⁶ = 201123137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201123101) 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, 12606 + ... + 23688.

It is an arithmetic number, because the mean of its divisors is an integer number (17557056).

Almost surely, 2^201123201 is an apocalyptic number.

It is an amenable number.

201123201 is a deficient number, since it is larger than the sum of its proper divisors (79789695).

201123201 is a wasteful number, since it uses less digits than its factorization.

201123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11372.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201123201 is about 14181.7911774218. The cubic root of 201123201 is about 585.8962578488.

Adding to 201123201 its reverse (102321102), we get a palindrome (303444303).

The spelling of 201123201 in words is "two hundred one million, one hundred twenty-three thousand, two hundred one".