201123232201 has 4 divisors (see below), whose sum is σ = 208058516100. Its totient is φ = 194187948304.

The previous prime is 201123232157. The next prime is 201123232207. The reversal of 201123232201 is 102232321102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31576934601 + 169546297600 = 177699^2 + 411760^2 .

It is a cyclic number.

It is not a de Polignac number, because 201123232201 - 2²³ = 201114843593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201123232207) 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, 3467641906 + ... + 3467641963.

It is an arithmetic number, because the mean of its divisors is an integer number (52014629025).

Almost surely, 2^201123232201 is an apocalyptic number.

It is an amenable number.

201123232201 is a deficient number, since it is larger than the sum of its proper divisors (6935283899).

201123232201 is an equidigital number, since it uses as much as digits as its factorization.

201123232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6935283898.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201123232201 its reverse (102232321102), we get a palindrome (303355553303).

The spelling of 201123232201 in words is "two hundred one billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred one".