20303323 has 8 divisors (see below), whose sum is σ = 21008736. Its totient is φ = 19608000.

The previous prime is 20303299. The next prime is 20303329. The reversal of 20303323 is 32330302.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20303323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20303297 and 20303306.

It is not an unprimeable number, because it can be changed into a prime (20303329) 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, 1690 + ... + 6592.

It is an arithmetic number, because the mean of its divisors is an integer number (2626092).

Almost surely, 2^20303323 is an apocalyptic number.

20303323 is a deficient number, since it is larger than the sum of its proper divisors (705413).

20303323 is a wasteful number, since it uses less digits than its factorization.

20303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

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

The square root of 20303323 is about 4505.9208825722. The cubic root of 20303323 is about 272.8071244732.

Adding to 20303323 its reverse (32330302), we get a palindrome (52633625).

The spelling of 20303323 in words is "twenty million, three hundred three thousand, three hundred twenty-three".