20302102130321 has 16 divisors (see below), whose sum is σ = 22325721292800. Its totient is φ = 18308683563600.

The previous prime is 20302102130293. The next prime is 20302102130383. The reversal of 20302102130321 is 12303120120302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302102130321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20302102130293 and 20302102130302.

It is not an unprimeable number, because it can be changed into a prime (20302102630321) 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, 12704051 + ... + 14212568.

It is an arithmetic number, because the mean of its divisors is an integer number (1395357580800).

Almost surely, 2^{20302102130321} is an apocalyptic number.

It is an amenable number.

20302102130321 is a deficient number, since it is larger than the sum of its proper divisors (2023619162479).

20302102130321 is a wasteful number, since it uses less digits than its factorization.

20302102130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26917180.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20302102130321 its reverse (12303120120302), we get a palindrome (32605222250623).

The spelling of 20302102130321 in words is "twenty trillion, three hundred two billion, one hundred two million, one hundred thirty thousand, three hundred twenty-one".