20313220313 has 8 divisors (see below), whose sum is σ = 20366808000. Its totient is φ = 20259699408.

The previous prime is 20313220303. The next prime is 20313220379. The reversal of 20313220313 is 31302231302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20313220313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313220303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624470 + ... + 656192.

It is an arithmetic number, because the mean of its divisors is an integer number (2545851000).

Almost surely, 2^20313220313 is an apocalyptic number.

It is an amenable number.

20313220313 is a deficient number, since it is larger than the sum of its proper divisors (53587687).

20313220313 is a wasteful number, since it uses less digits than its factorization.

20313220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33391.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20313220313 its reverse (31302231302), we get a palindrome (51615451615).

The spelling of 20313220313 in words is "twenty billion, three hundred thirteen million, two hundred twenty thousand, three hundred thirteen".