20520050312347 has 2 divisors, whose sum is σ = 20520050312348. Its totient is φ = 20520050312346.

The previous prime is 20520050312341. The next prime is 20520050312401. The reversal of 20520050312347 is 74321305002502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20520050312347 - 2¹⁵ = 20520050279579 is a prime.

It is not a weakly prime, because it can be changed into another prime (20520050312341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10260025156173 + 10260025156174.

It is an arithmetic number, because the mean of its divisors is an integer number (10260025156174).

Almost surely, 2^{20520050312347} is an apocalyptic number.

20520050312347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20520050312347 is an equidigital number, since it uses as much as digits as its factorization.

20520050312347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 20520050312347 its reverse (74321305002502), we get a palindrome (94841355314849).

The spelling of 20520050312347 in words is "twenty trillion, five hundred twenty billion, fifty million, three hundred twelve thousand, three hundred forty-seven".