1112171089 has 2 divisors, whose sum is σ = 1112171090. Its totient is φ = 1112171088.

The previous prime is 1112171041. The next prime is 1112171101. The reversal of 1112171089 is 9801712111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027843600 + 84327489 = 32060^2 + 9183^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112171089 - 2²³ = 1103782481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112171089.

It is not a weakly prime, because it can be changed into another prime (1112171009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556085544 + 556085545.

It is an arithmetic number, because the mean of its divisors is an integer number (556085545).

Almost surely, 2^1112171089 is an apocalyptic number.

It is an amenable number.

1112171089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112171089 is an equidigital number, since it uses as much as digits as its factorization.

1112171089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 31.

The square root of 1112171089 is about 33349.2292114825. The cubic root of 1112171089 is about 1036.0734237477.

The spelling of 1112171089 in words is "one billion, one hundred twelve million, one hundred seventy-one thousand, eighty-nine".