20320231323023 has 4 divisors (see below), whose sum is σ = 20324247977880. Its totient is φ = 20316214668168.

The previous prime is 20320231323001. The next prime is 20320231323047. The reversal of 20320231323023 is 32032313202302.

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 20320231323023 - 2⁴² = 15922184811919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20320231322983 and 20320231323001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320231313023) 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, 2008319840 + ... + 2008329957.

It is an arithmetic number, because the mean of its divisors is an integer number (5081061994470).

Almost surely, 2^{20320231323023} is an apocalyptic number.

20320231323023 is a deficient number, since it is larger than the sum of its proper divisors (4016654857).

20320231323023 is an equidigital number, since it uses as much as digits as its factorization.

20320231323023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016654856.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20320231323023 its reverse (32032313202302), we get a palindrome (52352544525325).

The spelling of 20320231323023 in words is "twenty trillion, three hundred twenty billion, two hundred thirty-one million, three hundred twenty-three thousand, twenty-three".