20111041 has 4 divisors (see below), whose sum is σ = 20165332. Its totient is φ = 20056752.

The previous prime is 20111027. The next prime is 20111053. The reversal of 20111041 is 14011102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5640625 + 14470416 = 2375^2 + 3804^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111041 - 2¹⁵ = 20078273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26586 + ... + 27331.

It is an arithmetic number, because the mean of its divisors is an integer number (5041333).

Almost surely, 2^20111041 is an apocalyptic number.

It is an amenable number.

20111041 is a deficient number, since it is larger than the sum of its proper divisors (54291).

20111041 is an equidigital number, since it uses as much as digits as its factorization.

20111041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54290.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 20111041 is about 4484.5335320410. The cubic root of 20111041 is about 271.9431875650.

Adding to 20111041 its reverse (14011102), we get a palindrome (34122143).

The spelling of 20111041 in words is "twenty million, one hundred eleven thousand, forty-one".