20200120127101 has 2 divisors, whose sum is σ = 20200120127102. Its totient is φ = 20200120127100.

The previous prime is 20200120127093. The next prime is 20200120127177. The reversal of 20200120127101 is 10172102100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19235548647225 + 964571479876 = 4385835^2 + 982126^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200120127101 - 2³ = 20200120127093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200120122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100060063550 + 10100060063551.

It is an arithmetic number, because the mean of its divisors is an integer number (10100060063551).

Almost surely, 2^{20200120127101} is an apocalyptic number.

It is an amenable number.

20200120127101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200120127101 is an equidigital number, since it uses as much as digits as its factorization.

20200120127101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 20200120127101 its reverse (10172102100202), we get a palindrome (30372222227303).

The spelling of 20200120127101 in words is "twenty trillion, two hundred billion, one hundred twenty million, one hundred twenty-seven thousand, one hundred one".