21302123320330 has 32 divisors (see below), whose sum is σ = 39160070659584. Its totient is φ = 8339464646016.

The previous prime is 21302123320319. The next prime is 21302123320333. The reversal of 21302123320330 is 3302332120312.

It is a junction number, because it is equal to n+sod(n) for n = 21302123320295 and 21302123320304.

It is not an unprimeable number, because it can be changed into a prime (21302123320333) 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, 58169379 + ... + 58534441.

It is an arithmetic number, because the mean of its divisors is an integer number (1223752208112).

Almost surely, 2^{21302123320330} is an apocalyptic number.

21302123320330 is a deficient number, since it is larger than the sum of its proper divisors (17857947339254).

21302123320330 is a wasteful number, since it uses less digits than its factorization.

21302123320330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489270.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21302123320330 its reverse (3302332120312), we get a palindrome (24604455440642).

The spelling of 21302123320330 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-three million, three hundred twenty thousand, three hundred thirty".