201121183 has 2 divisors, whose sum is σ = 201121184. Its totient is φ = 201121182.

The previous prime is 201121171. The next prime is 201121229. The reversal of 201121183 is 381121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201121183 - 2¹³ = 201112991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201121183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201121103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560591 + 100560592.

It is an arithmetic number, because the mean of its divisors is an integer number (100560592).

Almost surely, 2^201121183 is an apocalyptic number.

201121183 is a deficient number, since it is larger than the sum of its proper divisors (1).

201121183 is an equidigital number, since it uses as much as digits as its factorization.

201121183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 201121183 is about 14181.7200296720. The cubic root of 201121183 is about 585.8942982827.

Adding to 201121183 its reverse (381121102), we get a palindrome (582242285).

The spelling of 201121183 in words is "two hundred one million, one hundred twenty-one thousand, one hundred eighty-three".