21243102101333 has 16 divisors (see below), whose sum is σ = 24476028508800. Its totient is φ = 18059871336000.

The previous prime is 21243102101293. The next prime is 21243102101363. The reversal of 21243102101333 is 33310120134212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21243102101333 - 2⁸ = 21243102101077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21243102101363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4349858 + ... + 7836291.

It is an arithmetic number, because the mean of its divisors is an integer number (1529751781800).

Almost surely, 2^{21243102101333} is an apocalyptic number.

It is an amenable number.

21243102101333 is a deficient number, since it is larger than the sum of its proper divisors (3232926407467).

21243102101333 is a wasteful number, since it uses less digits than its factorization.

21243102101333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12188188.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21243102101333 its reverse (33310120134212), we get a palindrome (54553222235545).

The spelling of 21243102101333 in words is "twenty-one trillion, two hundred forty-three billion, one hundred two million, one hundred one thousand, three hundred thirty-three".