201611 has 2 divisors, whose sum is σ = 201612. Its totient is φ = 201610.

The previous prime is 201599. The next prime is 201623. The reversal of 201611 is 116102.

201611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (201599) and next prime (201623).

It is a cyclic number.

It is not a de Polignac number, because 201611 - 2⁶ = 201547 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 201592 and 201601.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201611.

It is not a weakly prime, because it can be changed into another prime (201661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100805 + 100806.

It is an arithmetic number, because the mean of its divisors is an integer number (100806).

2²⁰¹⁶¹¹ is an apocalyptic number.

201611 is a deficient number, since it is larger than the sum of its proper divisors (1).

201611 is an equidigital number, since it uses as much as digits as its factorization.

201611 is an odious number, because the sum of its binary digits is odd.

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

The square root of 201611 is about 449.0111357194. The cubic root of 201611 is about 58.6369547953.

Adding to 201611 its reverse (116102), we get a palindrome (317713).

The spelling of 201611 in words is "two hundred one thousand, six hundred eleven".