20043452323 has 4 divisors (see below), whose sum is σ = 20241902448. Its totient is φ = 19845002200.

The previous prime is 20043452309. The next prime is 20043452347. The reversal of 20043452323 is 32325434002.

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

It is a cyclic number.

It is not a de Polignac number, because 20043452323 - 2¹⁷ = 20043321251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20043452291 and 20043452300.

It is not an unprimeable number, because it can be changed into a prime (20043452123) 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, 99224911 + ... + 99225112.

It is an arithmetic number, because the mean of its divisors is an integer number (5060475612).

Almost surely, 2^20043452323 is an apocalyptic number.

20043452323 is a deficient number, since it is larger than the sum of its proper divisors (198450125).

20043452323 is a wasteful number, since it uses less digits than its factorization.

20043452323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198450124.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 20043452323 its reverse (32325434002), we get a palindrome (52368886325).

The spelling of 20043452323 in words is "twenty billion, forty-three million, four hundred fifty-two thousand, three hundred twenty-three".