103111211210197 has 2 divisors, whose sum is σ = 103111211210198. Its totient is φ = 103111211210196.

The previous prime is 103111211210191. The next prime is 103111211210269. The reversal of 103111211210197 is 791012112111301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79525123594596 + 23586087615601 = 8917686^2 + 4856551^2 .

It is a cyclic number.

It is not a de Polignac number, because 103111211210197 - 2¹⁹ = 103111210685909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103111211210191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51555605605098 + 51555605605099.

It is an arithmetic number, because the mean of its divisors is an integer number (51555605605099).

Almost surely, 2^{103111211210197} is an apocalyptic number.

It is an amenable number.

103111211210197 is a deficient number, since it is larger than the sum of its proper divisors (1).

103111211210197 is an equidigital number, since it uses as much as digits as its factorization.

103111211210197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 31.

Adding to 103111211210197 its reverse (791012112111301), we get a palindrome (894123323321498).

The spelling of 103111211210197 in words is "one hundred three trillion, one hundred eleven billion, two hundred eleven million, two hundred ten thousand, one hundred ninety-seven".