20520050312407 has 2 divisors, whose sum is σ = 20520050312408. Its totient is φ = 20520050312406.

The previous prime is 20520050312401. The next prime is 20520050312431. The reversal of 20520050312407 is 70421305002502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20520050312407 - 2³⁵ = 20485690574039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20520050312401) 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 as a sum of consecutive naturals, namely, 10260025156203 + 10260025156204.

It is an arithmetic number, because the mean of its divisors is an integer number (10260025156204).

Almost surely, 2^{20520050312407} is an apocalyptic number.

20520050312407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20520050312407 is an equidigital number, since it uses as much as digits as its factorization.

20520050312407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 20520050312407 its reverse (70421305002502), we get a palindrome (90941355314909).

The spelling of 20520050312407 in words is "twenty trillion, five hundred twenty billion, fifty million, three hundred twelve thousand, four hundred seven".