2011213320197 has 2 divisors, whose sum is σ = 2011213320198. Its totient is φ = 2011213320196.

The previous prime is 2011213320173. The next prime is 2011213320251. The reversal of 2011213320197 is 7910233121102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247172999361 + 764040320836 = 1116769^2 + 874094^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011213320197 - 2³⁰ = 2010139578373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011213322197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005606660098 + 1005606660099.

It is an arithmetic number, because the mean of its divisors is an integer number (1005606660099).

Almost surely, 2^{2011213320197} is an apocalyptic number.

It is an amenable number.

2011213320197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011213320197 is an equidigital number, since it uses as much as digits as its factorization.

2011213320197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

Adding to 2011213320197 its reverse (7910233121102), we get a palindrome (9921446441299).

The spelling of 2011213320197 in words is "two trillion, eleven billion, two hundred thirteen million, three hundred twenty thousand, one hundred ninety-seven".