20330323 has 16 divisors (see below), whose sum is σ = 23496480. Its totient is φ = 17432064.

The previous prime is 20330309. The next prime is 20330333. The reversal of 20330323 is 32303302.

It is a happy number.

It is not a de Polignac number, because 20330323 - 2⁵ = 20330291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330297 and 20330306.

It is not an unprimeable number, because it can be changed into a prime (20330333) 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, 12315 + ... + 13867.

It is an arithmetic number, because the mean of its divisors is an integer number (1468530).

Almost surely, 2^20330323 is an apocalyptic number.

20330323 is a deficient number, since it is larger than the sum of its proper divisors (3166157).

20330323 is a wasteful number, since it uses less digits than its factorization.

20330323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 20330323 is about 4508.9159451025. The cubic root of 20330323 is about 272.9280000836.

Adding to 20330323 its reverse (32303302), we get a palindrome (52633625).

The spelling of 20330323 in words is "twenty million, three hundred thirty thousand, three hundred twenty-three".