100111112010197 has 2 divisors, whose sum is σ = 100111112010198. Its totient is φ = 100111112010196.

The previous prime is 100111112010047. The next prime is 100111112010223. The reversal of 100111112010197 is 791010211111001.

It is an a-pointer prime, because the next prime (100111112010223) can be obtained adding 100111112010197 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78887685751876 + 21223426258321 = 8881874^2 + 4606889^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111112010197 - 2¹⁰ = 100111112009173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111112013197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055556005098 + 50055556005099.

It is an arithmetic number, because the mean of its divisors is an integer number (50055556005099).

Almost surely, 2^{100111112010197} is an apocalyptic number.

It is an amenable number.

100111112010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111112010197 is an equidigital number, since it uses as much as digits as its factorization.

100111112010197 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 26.

Adding to 100111112010197 its reverse (791010211111001), we get a palindrome (891121323121198).

The spelling of 100111112010197 in words is "one hundred trillion, one hundred eleven billion, one hundred twelve million, ten thousand, one hundred ninety-seven".