11120989 has 6 divisors (see below), whose sum is σ = 12224030. Its totient is φ = 10109880.

The previous prime is 11120981. The next prime is 11121037. The reversal of 11120989 is 98902111.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 12100 = 3333^2 + 110^2 .

It is not a de Polignac number, because 11120989 - 2³ = 11120981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11120989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120981) 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 5 ways as a sum of consecutive naturals, for example, 45834 + ... + 46075.

Almost surely, 2^11120989 is an apocalyptic number.

It is an amenable number.

11120989 is a deficient number, since it is larger than the sum of its proper divisors (1103041).

11120989 is an equidigital number, since it uses as much as digits as its factorization.

11120989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91931 (or 91920 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 11120989 is about 3334.8146875051. The cubic root of 11120989 is about 223.2104229512.

The spelling of 11120989 in words is "eleven million, one hundred twenty thousand, nine hundred eighty-nine".