20313106056304 has 80 divisors (see below), whose sum is σ = 40950695728800. Its totient is φ = 9749388873728.

The previous prime is 20313106056283. The next prime is 20313106056343. The reversal of 20313106056304 is 40365060131302.

It is a self number, because there is not a number n which added to its sum of digits gives 20313106056304.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71103252 + ... + 71388364.

It is an arithmetic number, because the mean of its divisors is an integer number (511883696610).

Almost surely, 2^{20313106056304} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313106056304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20475347864400).

20313106056304 is an abundant number, since it is smaller than the sum of its proper divisors (20637589672496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313106056304 is a wasteful number, since it uses less digits than its factorization.

20313106056304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286042 (or 286036 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 20313106056304 its reverse (40365060131302), we get a palindrome (60678166187606).

The spelling of 20313106056304 in words is "twenty trillion, three hundred thirteen billion, one hundred six million, fifty-six thousand, three hundred four".