201131201 has 2 divisors, whose sum is σ = 201131202. Its totient is φ = 201131200.

The previous prime is 201131197. The next prime is 201131209. The reversal of 201131201 is 102131102.

201131201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200958976 + 172225 = 14176^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131201 - 2² = 201131197 is a prime.

It is not a weakly prime, because it can be changed into another prime (201131209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100565600 + 100565601.

It is an arithmetic number, because the mean of its divisors is an integer number (100565601).

Almost surely, 2^201131201 is an apocalyptic number.

It is an amenable number.

201131201 is a deficient number, since it is larger than the sum of its proper divisors (1).

201131201 is an equidigital number, since it uses as much as digits as its factorization.

201131201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 201131201 is about 14182.0732264363. The cubic root of 201131201 is about 585.9040260690.

Adding to 201131201 its reverse (102131102), we get a palindrome (303262303).

Subtracting from 201131201 its reverse (102131102), we obtain a palindrome (99000099).

The spelling of 201131201 in words is "two hundred one million, one hundred thirty-one thousand, two hundred one".