20441011 has 4 divisors (see below), whose sum is σ = 20548224. Its totient is φ = 20333800.

The previous prime is 20440999. The next prime is 20441023. The reversal of 20441011 is 11014402.

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

It is an interprime number because it is at equal distance from previous prime (20440999) and next prime (20441023).

It is a cyclic number.

It is not a de Polignac number, because 20441011 - 2⁷ = 20440883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20440982 and 20441000.

It is not an unprimeable number, because it can be changed into a prime (20441051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53320 + ... + 53701.

It is an arithmetic number, because the mean of its divisors is an integer number (5137056).

Almost surely, 2^20441011 is an apocalyptic number.

20441011 is a deficient number, since it is larger than the sum of its proper divisors (107213).

20441011 is a wasteful number, since it uses less digits than its factorization.

20441011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107212.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20441011 is about 4521.1736308176. The cubic root of 20441011 is about 273.4224207260.

Adding to 20441011 its reverse (11014402), we get a palindrome (31455413).

The spelling of 20441011 in words is "twenty million, four hundred forty-one thousand, eleven".