20442113111 has 8 divisors (see below), whose sum is σ = 23368512384. Its totient is φ = 17517238200.

The previous prime is 20442113047. The next prime is 20442113113. The reversal of 20442113111 is 11131124402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20442113111 - 2⁶ = 20442113047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442113113) 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 7 ways as a sum of consecutive naturals, for example, 352205 + ... + 406118.

It is an arithmetic number, because the mean of its divisors is an integer number (2921064048).

Almost surely, 2^20442113111 is an apocalyptic number.

20442113111 is a deficient number, since it is larger than the sum of its proper divisors (2926399273).

20442113111 is an equidigital number, since it uses as much as digits as its factorization.

20442113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762181.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20442113111 its reverse (11131124402), we get a palindrome (31573237513).

The spelling of 20442113111 in words is "twenty billion, four hundred forty-two million, one hundred thirteen thousand, one hundred eleven".