201101611 has 2 divisors, whose sum is σ = 201101612. Its totient is φ = 201101610.

The previous prime is 201101609. The next prime is 201101647. The reversal of 201101611 is 116101102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201101611 - 2¹ = 201101609 is a prime.

Together with 201101609, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 201101591 and 201101600.

It is not a weakly prime, because it can be changed into another prime (201101711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550805 + 100550806.

It is an arithmetic number, because the mean of its divisors is an integer number (100550806).

Almost surely, 2^201101611 is an apocalyptic number.

201101611 is a deficient number, since it is larger than the sum of its proper divisors (1).

201101611 is an equidigital number, since it uses as much as digits as its factorization.

201101611 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 13.

The square root of 201101611 is about 14181.0299696461. The cubic root of 201101611 is about 585.8752923365.

Adding to 201101611 its reverse (116101102), we get a palindrome (317202713).

The spelling of 201101611 in words is "two hundred one million, one hundred one thousand, six hundred eleven".