20201012101 has 2 divisors, whose sum is σ = 20201012102. Its totient is φ = 20201012100.

The previous prime is 20201012077. The next prime is 20201012123. The reversal of 20201012101 is 10121010202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13537555201 + 6663456900 = 116351^2 + 81630^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201012101 - 2⁷ = 20201011973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100506050 + 10100506051.

It is an arithmetic number, because the mean of its divisors is an integer number (10100506051).

Almost surely, 2^20201012101 is an apocalyptic number.

It is an amenable number.

20201012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201012101 is an equidigital number, since it uses as much as digits as its factorization.

20201012101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20201012101 its reverse (10121010202), we get a palindrome (30322022303).

It can be divided in two parts, 2020101 and 2101, that added together give a palindrome (2022202).

The spelling of 20201012101 in words is "twenty billion, two hundred one million, twelve thousand, one hundred one".