111121120209163 has 2 divisors, whose sum is σ = 111121120209164. Its totient is φ = 111121120209162.

The previous prime is 111121120209161. The next prime is 111121120209191. The reversal of 111121120209163 is 361902021121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111121120209163 - 2¹ = 111121120209161 is a prime.

Together with 111121120209161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111121120209161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560560104581 + 55560560104582.

It is an arithmetic number, because the mean of its divisors is an integer number (55560560104582).

Almost surely, 2^{111121120209163} is an apocalyptic number.

111121120209163 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121120209163 is an equidigital number, since it uses as much as digits as its factorization.

111121120209163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 111121120209163 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twenty million, two hundred nine thousand, one hundred sixty-three".