21301233333 has 16 divisors (see below), whose sum is σ = 29204910336. Its totient is φ = 13800127680.

The previous prime is 21301233307. The next prime is 21301233361. The reversal of 21301233333 is 33333210312.

It is not a de Polignac number, because 21301233333 - 2⁵ = 21301233301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301233383) 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 15 ways as a sum of consecutive naturals, for example, 25741 + ... + 208002.

It is an arithmetic number, because the mean of its divisors is an integer number (1825306896).

Almost surely, 2^21301233333 is an apocalyptic number.

It is an amenable number.

21301233333 is a deficient number, since it is larger than the sum of its proper divisors (7903677003).

21301233333 is a wasteful number, since it uses less digits than its factorization.

21301233333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234604.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 21301233333 its reverse (33333210312), we get a palindrome (54634443645).

The spelling of 21301233333 in words is "twenty-one billion, three hundred one million, two hundred thirty-three thousand, three hundred thirty-three".