21441112133 has 32 divisors (see below), whose sum is σ = 25434393600. Its totient is φ = 18063183600.

The previous prime is 21441112109. The next prime is 21441112151. The reversal of 21441112133 is 33121114412.

It is not a de Polignac number, because 21441112133 - 2¹⁴ = 21441095749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21441112099 and 21441112108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441112103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14776058 + ... + 14777508.

It is an arithmetic number, because the mean of its divisors is an integer number (794824800).

Almost surely, 2^21441112133 is an apocalyptic number.

It is an amenable number.

21441112133 is a deficient number, since it is larger than the sum of its proper divisors (3993281467).

21441112133 is an equidigital number, since it uses as much as digits as its factorization.

21441112133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2168 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 21441112133 its reverse (33121114412), we get a palindrome (54562226545).

The spelling of 21441112133 in words is "twenty-one billion, four hundred forty-one million, one hundred twelve thousand, one hundred thirty-three".