20323313221323 has 64 divisors (see below), whose sum is σ = 32920174006272. Its totient is φ = 10887009853440.

The previous prime is 20323313221297. The next prime is 20323313221327. The reversal of 20323313221323 is 32312231332302.

It is not a de Polignac number, because 20323313221323 - 2⁸ = 20323313221067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323313221327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 264096190 + ... + 264173132.

It is an arithmetic number, because the mean of its divisors is an integer number (514377718848).

Almost surely, 2^{20323313221323} is an apocalyptic number.

20323313221323 is a deficient number, since it is larger than the sum of its proper divisors (12596860784949).

20323313221323 is a wasteful number, since it uses less digits than its factorization.

20323313221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79884.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 20323313221323 its reverse (32312231332302), we get a palindrome (52635544553625).

The spelling of 20323313221323 in words is "twenty trillion, three hundred twenty-three billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-three".