20302321321 has 8 divisors (see below), whose sum is σ = 20967372288. Its totient is φ = 19637904000.

The previous prime is 20302321297. The next prime is 20302321327. The reversal of 20302321321 is 12312320302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20302321321 - 2¹¹ = 20302319273 is a prime.

It is a super-2 number, since 2×20302321321² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20302321327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92845 + ... + 221866.

It is an arithmetic number, because the mean of its divisors is an integer number (2620921536).

Almost surely, 2^20302321321 is an apocalyptic number.

It is an amenable number.

20302321321 is a deficient number, since it is larger than the sum of its proper divisors (665050967).

20302321321 is a wasteful number, since it uses less digits than its factorization.

20302321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316823.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20302321321 its reverse (12312320302), we get a palindrome (32614641623).

The spelling of 20302321321 in words is "twenty billion, three hundred two million, three hundred twenty-one thousand, three hundred twenty-one".