20442043323 has 24 divisors (see below), whose sum is σ = 33472355280. Its totient is φ = 11917627200.

The previous prime is 20442043291. The next prime is 20442043379. The reversal of 20442043323 is 32334024402.

20442043323 is a `hidden beast` number, since 204 + 4 + 2 + 0 + 433 + 23 = 666.

It is not a de Polignac number, because 20442043323 - 2⁵ = 20442043291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20442053323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4595628 + ... + 4600073.

It is an arithmetic number, because the mean of its divisors is an integer number (1394681470).

Almost surely, 2^20442043323 is an apocalyptic number.

20442043323 is a deficient number, since it is larger than the sum of its proper divisors (13030311957).

20442043323 is a wasteful number, since it uses less digits than its factorization.

20442043323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195739 (or 9195736 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20442043323 its reverse (32334024402), we get a palindrome (52776067725).

The spelling of 20442043323 in words is "twenty billion, four hundred forty-two million, forty-three thousand, three hundred twenty-three".