111020112089 has 2 divisors, whose sum is σ = 111020112090. Its totient is φ = 111020112088.

The previous prime is 111020112079. The next prime is 111020112113. The reversal of 111020112089 is 980211020111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106602250000 + 4417862089 = 326500^2 + 66467^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020112089 - 2²⁰ = 111019063513 is a prime.

It is not a weakly prime, because it can be changed into another prime (111020112019) 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, 55510056044 + 55510056045.

It is an arithmetic number, because the mean of its divisors is an integer number (55510056045).

Almost surely, 2^111020112089 is an apocalyptic number.

It is an amenable number.

111020112089 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020112089 is an equidigital number, since it uses as much as digits as its factorization.

111020112089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 111020112089 in words is "one hundred eleven billion, twenty million, one hundred twelve thousand, eighty-nine".