20323331112313 has 4 divisors (see below), whose sum is σ = 20323600895988. Its totient is φ = 20323061328640.

The previous prime is 20323331112311. The next prime is 20323331112341. The reversal of 20323331112313 is 31321113332302.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18906869329209 + 1416461783104 = 4348203^2 + 1190152^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323331112313 - 2¹ = 20323331112311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323331112311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134778808 + ... + 134929513.

It is an arithmetic number, because the mean of its divisors is an integer number (5080900223997).

Almost surely, 2^{20323331112313} is an apocalyptic number.

It is an amenable number.

20323331112313 is a deficient number, since it is larger than the sum of its proper divisors (269783675).

20323331112313 is an equidigital number, since it uses as much as digits as its factorization.

20323331112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269783674.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 20323331112313 its reverse (31321113332302), we get a palindrome (51644444444615).

The spelling of 20323331112313 in words is "twenty trillion, three hundred twenty-three billion, three hundred thirty-one million, one hundred twelve thousand, three hundred thirteen".