20442441111 has 4 divisors (see below), whose sum is σ = 27256588152. Its totient is φ = 13628294072.

The previous prime is 20442441091. The next prime is 20442441113. The reversal of 20442441111 is 11114424402.

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

It is a cyclic number.

It is not a de Polignac number, because 20442441111 - 2¹⁹ = 20441916823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442441113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407073516 + ... + 3407073521.

It is an arithmetic number, because the mean of its divisors is an integer number (6814147038).

Almost surely, 2^20442441111 is an apocalyptic number.

20442441111 is a deficient number, since it is larger than the sum of its proper divisors (6814147041).

20442441111 is an equidigital number, since it uses as much as digits as its factorization.

20442441111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814147040.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 20442441111 its reverse (11114424402), we get a palindrome (31556865513).

It can be divided in two parts, 2044 and 2441111, that added together give a triangular number (2443155 = T₂₂₁₀).

The spelling of 20442441111 in words is "twenty billion, four hundred forty-two million, four hundred forty-one thousand, one hundred eleven".