111201200917 has 2 divisors, whose sum is σ = 111201200918. Its totient is φ = 111201200916.

The previous prime is 111201200911. The next prime is 111201201019. The reversal of 111201200917 is 719002102111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78961562001 + 32239638916 = 281001^2 + 179554^2 .

It is a cyclic number.

It is not a de Polignac number, because 111201200917 - 2²³ = 111192812309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111201200891 and 111201200900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111201200911) 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, 55600600458 + 55600600459.

It is an arithmetic number, because the mean of its divisors is an integer number (55600600459).

Almost surely, 2^111201200917 is an apocalyptic number.

It is an amenable number.

111201200917 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201200917 is an equidigital number, since it uses as much as digits as its factorization.

111201200917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 111201200917 in words is "one hundred eleven billion, two hundred one million, two hundred thousand, nine hundred seventeen".