20143323 has 10 divisors (see below), whose sum is σ = 30090764. Its totient is φ = 13428828.

The previous prime is 20143301. The next prime is 20143327. The reversal of 20143323 is 32334102.

It is not a de Polignac number, because 20143323 - 2¹² = 20139227 is a prime.

It is a super-2 number, since 2×20143323² = 811506922964658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20143296 and 20143305.

It is not an unprimeable number, because it can be changed into a prime (20143327) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124261 + ... + 124422.

Almost surely, 2^20143323 is an apocalyptic number.

20143323 is a deficient number, since it is larger than the sum of its proper divisors (9947441).

20143323 is an equidigital number, since it uses as much as digits as its factorization.

20143323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248695 (or 248686 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20143323 is about 4488.1313483453. The cubic root of 20143323 is about 272.0886164187.

Adding to 20143323 its reverse (32334102), we get a palindrome (52477425).

The spelling of 20143323 in words is "twenty million, one hundred forty-three thousand, three hundred twenty-three".