20313120305124 has 72 divisors (see below), whose sum is σ = 52053163219512. Its totient is φ = 6677936524800.

The previous prime is 20313120305113. The next prime is 20313120305129. The reversal of 20313120305124 is 42150302131302.

20313120305124 is a `hidden beast` number, since 2 + 0 + 31 + 312 + 0 + 305 + 12 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7159209948900 + 13153910356224 = 2675670^2 + 3626832^2 .

It is not an unprimeable number, because it can be changed into a prime (20313120305129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52633162 + ... + 53017694.

It is an arithmetic number, because the mean of its divisors is an integer number (722960600271).

Almost surely, 2^{20313120305124} is an apocalyptic number.

It is an amenable number.

20313120305124 is an abundant number, since it is smaller than the sum of its proper divisors (31740042914388).

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

20313120305124 is a wasteful number, since it uses less digits than its factorization.

20313120305124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404717 (or 404712 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20313120305124 its reverse (42150302131302), we get a palindrome (62463422436426).

The spelling of 20313120305124 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty million, three hundred five thousand, one hundred twenty-four".