100111200197 has 2 divisors, whose sum is σ = 100111200198. Its totient is φ = 100111200196.

The previous prime is 100111200191. The next prime is 100111200229. The reversal of 100111200197 is 791002111001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99048048961 + 1063151236 = 314719^2 + 32606^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111200197 - 2¹⁴ = 100111183813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111200191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055600098 + 50055600099.

It is an arithmetic number, because the mean of its divisors is an integer number (50055600099).

Almost surely, 2^100111200197 is an apocalyptic number.

It is an amenable number.

100111200197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111200197 is an equidigital number, since it uses as much as digits as its factorization.

100111200197 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 23.

Adding to 100111200197 its reverse (791002111001), we get a palindrome (891113311198).

The spelling of 100111200197 in words is "one hundred billion, one hundred eleven million, two hundred thousand, one hundred ninety-seven".