20313423313 has 4 divisors (see below), whose sum is σ = 20390660928. Its totient is φ = 20236185700.

The previous prime is 20313423287. The next prime is 20313423343. The reversal of 20313423313 is 31332431302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20313423313 - 2⁵ = 20313423281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313423343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38618413 + ... + 38618938.

It is an arithmetic number, because the mean of its divisors is an integer number (5097665232).

Almost surely, 2^20313423313 is an apocalyptic number.

It is an amenable number.

20313423313 is a deficient number, since it is larger than the sum of its proper divisors (77237615).

20313423313 is an equidigital number, since it uses as much as digits as its factorization.

20313423313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77237614.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20313423313 its reverse (31332431302), we get a palindrome (51645854615).

The spelling of 20313423313 in words is "twenty billion, three hundred thirteen million, four hundred twenty-three thousand, three hundred thirteen".