20343323 has 16 divisors (see below), whose sum is σ = 27315456. Its totient is φ = 14631840.

The previous prime is 20343287. The next prime is 20343329. The reversal of 20343323 is 32334302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20343323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20343295 and 20343304.

It is not an unprimeable number, because it can be changed into a prime (20343329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9161 + ... + 11162.

It is an arithmetic number, because the mean of its divisors is an integer number (1707216).

Almost surely, 2^20343323 is an apocalyptic number.

20343323 is a deficient number, since it is larger than the sum of its proper divisors (6972133).

20343323 is a wasteful number, since it uses less digits than its factorization.

20343323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20354.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 20343323 is about 4510.3573029196. The cubic root of 20343323 is about 272.9861612847.

Adding to 20343323 its reverse (32334302), we get a palindrome (52677625).

It can be divided in two parts, 20 and 343323, that added together give a palindrome (343343).

The spelling of 20343323 in words is "twenty million, three hundred forty-three thousand, three hundred twenty-three".