21302323320133 has 16 divisors (see below), whose sum is σ = 21816864609280. Its totient is φ = 20794046419584.

The previous prime is 21302323320121. The next prime is 21302323320203. The reversal of 21302323320133 is 33102332320312.

It is a cyclic number.

It is not a de Polignac number, because 21302323320133 - 2⁵ = 21302323320101 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 (21302323320233) 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, 11700460 + ... + 13397962.

It is an arithmetic number, because the mean of its divisors is an integer number (1363554038080).

Almost surely, 2^{21302323320133} is an apocalyptic number.

It is an amenable number.

21302323320133 is a deficient number, since it is larger than the sum of its proper divisors (514541289147).

21302323320133 is a wasteful number, since it uses less digits than its factorization.

21302323320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699348.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21302323320133 its reverse (33102332320312), we get a palindrome (54404655640445).

The spelling of 21302323320133 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-three million, three hundred twenty thousand, one hundred thirty-three".