20201110103191 has 2 divisors, whose sum is σ = 20201110103192. Its totient is φ = 20201110103190.

The previous prime is 20201110103149. The next prime is 20201110103227. The reversal of 20201110103191 is 19130101110202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201110103191 - 2²⁷ = 20200975885463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201110193191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100555051595 + 10100555051596.

It is an arithmetic number, because the mean of its divisors is an integer number (10100555051596).

Almost surely, 2^{20201110103191} is an apocalyptic number.

20201110103191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201110103191 is an equidigital number, since it uses as much as digits as its factorization.

20201110103191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 20201110103191 its reverse (19130101110202), we get a palindrome (39331211213393).

The spelling of 20201110103191 in words is "twenty trillion, two hundred one billion, one hundred ten million, one hundred three thousand, one hundred ninety-one".