201011111010197 has 2 divisors, whose sum is σ = 201011111010198. Its totient is φ = 201011111010196.

The previous prime is 201011111010161. The next prime is 201011111010233. The reversal of 201011111010197 is 791010111110102.

It is a balanced prime because it is at equal distance from previous prime (201011111010161) and next prime (201011111010233).

It can be written as a sum of positive squares in only one way, i.e., 111383348776561 + 89627762233636 = 10553831^2 + 9467194^2 .

It is a cyclic number.

It is not a de Polignac number, because 201011111010197 - 2⁶ = 201011111010133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011116010197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505555505098 + 100505555505099.

It is an arithmetic number, because the mean of its divisors is an integer number (100505555505099).

Almost surely, 2^{201011111010197} is an apocalyptic number.

It is an amenable number.

201011111010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011111010197 is an equidigital number, since it uses as much as digits as its factorization.

201011111010197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 26.

Adding to 201011111010197 its reverse (791010111110102), we get a palindrome (992021222120299).

The spelling of 201011111010197 in words is "two hundred one trillion, eleven billion, one hundred eleven million, ten thousand, one hundred ninety-seven".