20247624720101 has 2 divisors, whose sum is σ = 20247624720102. Its totient is φ = 20247624720100.

The previous prime is 20247624720083. The next prime is 20247624720109. The reversal of 20247624720101 is 10102742674202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19907034592900 + 340590127201 = 4461730^2 + 583601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20247624720101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20247624720109) 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, 10123812360050 + 10123812360051.

It is an arithmetic number, because the mean of its divisors is an integer number (10123812360051).

Almost surely, 2^{20247624720101} is an apocalyptic number.

It is an amenable number.

20247624720101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247624720101 is an equidigital number, since it uses as much as digits as its factorization.

20247624720101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 20247624720101 in words is "twenty trillion, two hundred forty-seven billion, six hundred twenty-four million, seven hundred twenty thousand, one hundred one".