109109118197 has 2 divisors, whose sum is σ = 109109118198. Its totient is φ = 109109118196.

The previous prime is 109109118161. The next prime is 109109118203. The reversal of 109109118197 is 791811901901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104764858276 + 4344259921 = 323674^2 + 65911^2 .

It is a cyclic number.

It is not a de Polignac number, because 109109118197 - 2⁸ = 109109117941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109109198197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54554559098 + 54554559099.

It is an arithmetic number, because the mean of its divisors is an integer number (54554559099).

Almost surely, 2^109109118197 is an apocalyptic number.

It is an amenable number.

109109118197 is a deficient number, since it is larger than the sum of its proper divisors (1).

109109118197 is an equidigital number, since it uses as much as digits as its factorization.

109109118197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 47.

The spelling of 109109118197 in words is "one hundred nine billion, one hundred nine million, one hundred eighteen thousand, one hundred ninety-seven".