20423324323 has 8 divisors (see below), whose sum is σ = 21639918528. Its totient is φ = 19208421504.

The previous prime is 20423324321. The next prime is 20423324351. The reversal of 20423324323 is 32342332402.

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

It is a cyclic number.

It is not a de Polignac number, because 20423324323 - 2¹ = 20423324321 is a prime.

It is a super-2 number, since 2×20423324323² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20423324291 and 20423324300.

It is not an unprimeable number, because it can be changed into a prime (20423324321) 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, 397936 + ... + 446317.

It is an arithmetic number, because the mean of its divisors is an integer number (2704989816).

Almost surely, 2^20423324323 is an apocalyptic number.

20423324323 is a deficient number, since it is larger than the sum of its proper divisors (1216594205).

20423324323 is a wasteful number, since it uses less digits than its factorization.

20423324323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845693.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 20423324323 its reverse (32342332402), we get a palindrome (52765656725).

The spelling of 20423324323 in words is "twenty billion, four hundred twenty-three million, three hundred twenty-four thousand, three hundred twenty-three".