20023043323 has 4 divisors (see below), whose sum is σ = 20893610448. Its totient is φ = 19152476200.

The previous prime is 20023043279. The next prime is 20023043347. The reversal of 20023043323 is 32334032002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023043323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023043294 and 20023043303.

It is not an unprimeable number, because it can be changed into a prime (20023043123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435283528 + ... + 435283573.

It is an arithmetic number, because the mean of its divisors is an integer number (5223402612).

Almost surely, 2^20023043323 is an apocalyptic number.

20023043323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20023043323 is a deficient number, since it is larger than the sum of its proper divisors (870567125).

20023043323 is an equidigital number, since it uses as much as digits as its factorization.

20023043323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870567124.

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 20023043323 its reverse (32334032002), we get a palindrome (52357075325).

The spelling of 20023043323 in words is "twenty billion, twenty-three million, forty-three thousand, three hundred twenty-three".