13340820197 has 2 divisors, whose sum is σ = 13340820198. Its totient is φ = 13340820196.

The previous prime is 13340820179. The next prime is 13340820211. The reversal of 13340820197 is 79102804331.

13340820197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (13340820179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13204537921 + 136282276 = 114911^2 + 11674^2 .

It is a cyclic number.

It is not a de Polignac number, because 13340820197 - 2¹⁴ = 13340803813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13340820197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13340820167) 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, 6670410098 + 6670410099.

It is an arithmetic number, because the mean of its divisors is an integer number (6670410099).

Almost surely, 2^13340820197 is an apocalyptic number.

It is an amenable number.

13340820197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13340820197 is an equidigital number, since it uses as much as digits as its factorization.

13340820197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 13340820197 in words is "thirteen billion, three hundred forty million, eight hundred twenty thousand, one hundred ninety-seven".