21303242224033 has 8 divisors (see below), whose sum is σ = 26559886409280. Its totient is φ = 16599929005680.

The previous prime is 21303242224007. The next prime is 21303242224111. The reversal of 21303242224033 is 33042224230312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21303242224033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21303242223986 and 21303242224004.

It is not an unprimeable number, because it can be changed into a prime (21303242221033) 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 7 ways as a sum of consecutive naturals, for example, 138332741638 + ... + 138332741791.

It is an arithmetic number, because the mean of its divisors is an integer number (3319985801160).

Almost surely, 2^{21303242224033} is an apocalyptic number.

It is an amenable number.

21303242224033 is a deficient number, since it is larger than the sum of its proper divisors (5256644185247).

21303242224033 is a wasteful number, since it uses less digits than its factorization.

21303242224033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276665483447.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 21303242224033 its reverse (33042224230312), we get a palindrome (54345466454345).

The spelling of 21303242224033 in words is "twenty-one trillion, three hundred three billion, two hundred forty-two million, two hundred twenty-four thousand, thirty-three".