20520050312104 has 64 divisors (see below), whose sum is σ = 44121687039360. Its totient is φ = 8764291549440.

The previous prime is 20520050312101. The next prime is 20520050312129. The reversal of 20520050312104 is 40121305002502.

It is a super-2 number, since 2×20520050312104² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20520050312101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69209134 + ... + 69504994.

It is an arithmetic number, because the mean of its divisors is an integer number (689401359990).

Almost surely, 2^{20520050312104} is an apocalyptic number.

It is an amenable number.

20520050312104 is an abundant number, since it is smaller than the sum of its proper divisors (23601636727256).

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

20520050312104 is a wasteful number, since it uses less digits than its factorization.

20520050312104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300098 (or 300094 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20520050312104 its reverse (40121305002502), we get a palindrome (60641355314606).

The spelling of 20520050312104 in words is "twenty trillion, five hundred twenty billion, fifty million, three hundred twelve thousand, one hundred four".