20302321330 has 16 divisors (see below), whose sum is σ = 36954788760. Its totient is φ = 8029681792.

The previous prime is 20302321327. The next prime is 20302321331. The reversal of 20302321330 is 3312320302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16476032881 + 3826288449 = 128359^2 + 61857^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20302321298 and 20302321307.

It is not an unprimeable number, because it can be changed into a prime (20302321331) 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, 11404909 + ... + 11406688.

Almost surely, 2^20302321330 is an apocalyptic number.

20302321330 is a deficient number, since it is larger than the sum of its proper divisors (16652467430).

20302321330 is a wasteful number, since it uses less digits than its factorization.

20302321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22811693.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20302321330 its reverse (3312320302), we get a palindrome (23614641632).

The spelling of 20302321330 in words is "twenty billion, three hundred two million, three hundred twenty-one thousand, three hundred thirty".