20320133320023 has 4 divisors (see below), whose sum is σ = 27093511093368. Its totient is φ = 13546755546680.

The previous prime is 20320133319989. The next prime is 20320133320033. The reversal of 20320133320023 is 32002333102302.

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 20320133320023 - 2¹⁸ = 20320133057879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20320133319975 and 20320133320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320133320033) 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, 3386688886668 + ... + 3386688886673.

It is an arithmetic number, because the mean of its divisors is an integer number (6773377773342).

Almost surely, 2^{20320133320023} is an apocalyptic number.

20320133320023 is a deficient number, since it is larger than the sum of its proper divisors (6773377773345).

20320133320023 is an equidigital number, since it uses as much as digits as its factorization.

20320133320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6773377773344.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20320133320023 its reverse (32002333102302), we get a palindrome (52322466422325).

The spelling of 20320133320023 in words is "twenty trillion, three hundred twenty billion, one hundred thirty-three million, three hundred twenty thousand, twenty-three".