1120440109 has 2 divisors, whose sum is σ = 1120440110. Its totient is φ = 1120440108.

The previous prime is 1120440107. The next prime is 1120440151. The reversal of 1120440109 is 9010440211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662908009 + 457532100 = 25747^2 + 21390^2 .

It is an emirp because it is prime and its reverse (9010440211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120440109 - 2¹ = 1120440107 is a prime.

Together with 1120440107, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1120440109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120440107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560220054 + 560220055.

It is an arithmetic number, because the mean of its divisors is an integer number (560220055).

Almost surely, 2^1120440109 is an apocalyptic number.

It is an amenable number.

1120440109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120440109 is an equidigital number, since it uses as much as digits as its factorization.

1120440109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1120440109 is about 33472.9758013834. The cubic root of 1120440109 is about 1038.6348301391.

The spelling of 1120440109 in words is "one billion, one hundred twenty million, four hundred forty thousand, one hundred nine".