201110491 has 2 divisors, whose sum is σ = 201110492. Its totient is φ = 201110490.

The previous prime is 201110477. The next prime is 201110501. The reversal of 201110491 is 194011102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201110491 - 2¹¹ = 201108443 is a prime.

It is a super-2 number, since 2×201110491² = 80890859180522162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201110431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555245 + 100555246.

It is an arithmetic number, because the mean of its divisors is an integer number (100555246).

Almost surely, 2^201110491 is an apocalyptic number.

201110491 is a deficient number, since it is larger than the sum of its proper divisors (1).

201110491 is an equidigital number, since it uses as much as digits as its factorization.

201110491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 201110491 is about 14181.3430605144. The cubic root of 201110491 is about 585.8839156654.

Adding to 201110491 its reverse (194011102), we get a palindrome (395121593).

It can be divided in two parts, 201110 and 491, that added together give a square (201601 = 449²).

The spelling of 201110491 in words is "two hundred one million, one hundred ten thousand, four hundred ninety-one".