1089109121 has 8 divisors (see below), whose sum is σ = 1093569120. Its totient is φ = 1084657408.

The previous prime is 1089109079. The next prime is 1089109129. The reversal of 1089109121 is 1219019801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1089109121 - 2⁶ = 1089109057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1089109129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421010 + ... + 423588.

It is an arithmetic number, because the mean of its divisors is an integer number (136696140).

Almost surely, 2^1089109121 is an apocalyptic number.

It is an amenable number.

1089109121 is a deficient number, since it is larger than the sum of its proper divisors (4459999).

1089109121 is a wasteful number, since it uses less digits than its factorization.

1089109121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 1089109121 is about 33001.6533070693. The cubic root of 1089109121 is about 1028.8620105136.

The spelling of 1089109121 in words is "one billion, eighty-nine million, one hundred nine thousand, one hundred twenty-one".