2001110111197 has 2 divisors, whose sum is σ = 2001110111198. Its totient is φ = 2001110111196.

The previous prime is 2001110111141. The next prime is 2001110111213. The reversal of 2001110111197 is 7911110111002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1078230947641 + 922879163556 = 1038379^2 + 960666^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001110111197 - 2¹¹ = 2001110109149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001110111107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000555055598 + 1000555055599.

It is an arithmetic number, because the mean of its divisors is an integer number (1000555055599).

Almost surely, 2^{2001110111197} is an apocalyptic number.

It is an amenable number.

2001110111197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001110111197 is an equidigital number, since it uses as much as digits as its factorization.

2001110111197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 25.

Adding to 2001110111197 its reverse (7911110111002), we get a palindrome (9912220222199).

The spelling of 2001110111197 in words is "two trillion, one billion, one hundred ten million, one hundred eleven thousand, one hundred ninety-seven".