20520050312401 has 2 divisors, whose sum is σ = 20520050312402. Its totient is φ = 20520050312400.

The previous prime is 20520050312347. The next prime is 20520050312407. The reversal of 20520050312401 is 10421305002502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20519776575376 + 273737025 = 4529876^2 + 16545^2 .

It is a cyclic number.

It is not a de Polignac number, because 20520050312401 - 2³³ = 20511460377809 is a prime.

It is not a weakly prime, because it can be changed into another prime (20520050312407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10260025156200 + 10260025156201.

It is an arithmetic number, because the mean of its divisors is an integer number (10260025156201).

Almost surely, 2^{20520050312401} is an apocalyptic number.

It is an amenable number.

20520050312401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20520050312401 is an equidigital number, since it uses as much as digits as its factorization.

20520050312401 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20520050312401 its reverse (10421305002502), we get a palindrome (30941355314903).

The spelling of 20520050312401 in words is "twenty trillion, five hundred twenty billion, fifty million, three hundred twelve thousand, four hundred one".