20117700124037 has 2 divisors, whose sum is σ = 20117700124038. Its totient is φ = 20117700124036.

The previous prime is 20117700124009. The next prime is 20117700124063. The reversal of 20117700124037 is 73042100771102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13014243840676 + 7103456283361 = 3607526^2 + 2665231^2 .

It is a cyclic number.

It is not a de Polignac number, because 20117700124037 - 2⁶ = 20117700123973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20117700123988 and 20117700124006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20117700124007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058850062018 + 10058850062019.

It is an arithmetic number, because the mean of its divisors is an integer number (10058850062019).

Almost surely, 2^{20117700124037} is an apocalyptic number.

It is an amenable number.

20117700124037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117700124037 is an equidigital number, since it uses as much as digits as its factorization.

20117700124037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 35.

Adding to 20117700124037 its reverse (73042100771102), we get a palindrome (93159800895139).

The spelling of 20117700124037 in words is "twenty trillion, one hundred seventeen billion, seven hundred million, one hundred twenty-four thousand, thirty-seven".