20112027317 has 2 divisors, whose sum is σ = 20112027318. Its totient is φ = 20112027316.

The previous prime is 20112027251. The next prime is 20112027323. The reversal of 20112027317 is 71372021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20046595396 + 65431921 = 141586^2 + 8089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112027317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112027337) 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, 10056013658 + 10056013659.

It is an arithmetic number, because the mean of its divisors is an integer number (10056013659).

Almost surely, 2^20112027317 is an apocalyptic number.

It is an amenable number.

20112027317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112027317 is an equidigital number, since it uses as much as digits as its factorization.

20112027317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 20112027317 its reverse (71372021102), we get a palindrome (91484048419).

The spelling of 20112027317 in words is "twenty billion, one hundred twelve million, twenty-seven thousand, three hundred seventeen".