1110120989 has 4 divisors (see below), whose sum is σ = 1114128924. Its totient is φ = 1106113056.

The previous prime is 1110120959. The next prime is 1110121021. The reversal of 1110120989 is 9890210111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 321915364 + 788205625 = 17942^2 + 28075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110120989 - 2²⁴ = 1093343773 is a prime.

It is a super-2 number, since 2×1110120989² = 2464737220436676242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110120929) 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 3 ways as a sum of consecutive naturals, for example, 2003552 + ... + 2004105.

It is an arithmetic number, because the mean of its divisors is an integer number (278532231).

Almost surely, 2^1110120989 is an apocalyptic number.

It is an amenable number.

1110120989 is a deficient number, since it is larger than the sum of its proper divisors (4007935).

1110120989 is an equidigital number, since it uses as much as digits as its factorization.

1110120989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007934.

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

The square root of 1110120989 is about 33318.4781915381. The cubic root of 1110120989 is about 1035.4364232607.

The spelling of 1110120989 in words is "one billion, one hundred ten million, one hundred twenty thousand, nine hundred eighty-nine".