20315123526304 has 12 divisors (see below), whose sum is σ = 39995399442474. Its totient is φ = 10157561763136.

The previous prime is 20315123526283. The next prime is 20315123526307. The reversal of 20315123526304 is 40362532151302.

It can be written as a sum of positive squares in only one way, i.e., 20254140211600 + 60983314704 = 4500460^2 + 246948^2 .

It is not an unprimeable number, because it can be changed into a prime (20315123526307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317423805067 + ... + 317423805130.

Almost surely, 2^{20315123526304} is an apocalyptic number.

It is an amenable number.

20315123526304 is a deficient number, since it is larger than the sum of its proper divisors (19680275916170).

20315123526304 is an equidigital number, since it uses as much as digits as its factorization.

20315123526304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634847610207 (or 634847610199 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20315123526304 its reverse (40362532151302), we get a palindrome (60677655677606).

The spelling of 20315123526304 in words is "twenty trillion, three hundred fifteen billion, one hundred twenty-three million, five hundred twenty-six thousand, three hundred four".