21241311333 has 8 divisors (see below), whose sum is σ = 30896452896. Its totient is φ = 12873522000.

The previous prime is 21241311331. The next prime is 21241311341. The reversal of 21241311333 is 33311314212.

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

It is not a de Polignac number, because 21241311333 - 2¹ = 21241311331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241311331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321838018 + ... + 321838083.

It is an arithmetic number, because the mean of its divisors is an integer number (3862056612).

Almost surely, 2^21241311333 is an apocalyptic number.

It is an amenable number.

21241311333 is a deficient number, since it is larger than the sum of its proper divisors (9655141563).

21241311333 is a wasteful number, since it uses less digits than its factorization.

21241311333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643676115.

The product of its digits is 1296, while the sum is 24.

Adding to 21241311333 its reverse (33311314212), we get a palindrome (54552625545).

The spelling of 21241311333 in words is "twenty-one billion, two hundred forty-one million, three hundred eleven thousand, three hundred thirty-three".