111027281089 has 2 divisors, whose sum is σ = 111027281090. Its totient is φ = 111027281088.

The previous prime is 111027281077. The next prime is 111027281117. The reversal of 111027281089 is 980182720111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110950280464 + 77000625 = 333092^2 + 8775^2 .

It is a cyclic number.

It is not a de Polignac number, because 111027281089 - 2³¹ = 108879797441 is a prime.

It is not a weakly prime, because it can be changed into another prime (111027282089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55513640544 + 55513640545.

It is an arithmetic number, because the mean of its divisors is an integer number (55513640545).

Almost surely, 2^111027281089 is an apocalyptic number.

It is an amenable number.

111027281089 is a deficient number, since it is larger than the sum of its proper divisors (1).

111027281089 is an equidigital number, since it uses as much as digits as its factorization.

111027281089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 40.

The spelling of 111027281089 in words is "one hundred eleven billion, twenty-seven million, two hundred eighty-one thousand, eighty-nine".