111120101097689 has 2 divisors, whose sum is σ = 111120101097690. Its totient is φ = 111120101097688.

The previous prime is 111120101097683. The next prime is 111120101097701. The reversal of 111120101097689 is 986790101021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92685675475600 + 18434425622089 = 9627340^2 + 4293533^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120101097689 - 2³² = 111115806130393 is a prime.

It is a super-2 number, since 2×111120101097689² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111120101097683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560050548844 + 55560050548845.

It is an arithmetic number, because the mean of its divisors is an integer number (55560050548845).

Almost surely, 2^{111120101097689} is an apocalyptic number.

It is an amenable number.

111120101097689 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120101097689 is an equidigital number, since it uses as much as digits as its factorization.

111120101097689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 47.

The spelling of 111120101097689 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred one million, ninety-seven thousand, six hundred eighty-nine".