1120440121 has 8 divisors (see below), whose sum is σ = 1157216544. Its totient is φ = 1084151040.

The previous prime is 1120440109. The next prime is 1120440151. The reversal of 1120440121 is 1210440211.

It is a happy number.

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 1120440121 - 2¹⁹ = 1119915833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120440095 and 1120440104.

It is not an unprimeable number, because it can be changed into a prime (1120440151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117160 + ... + 126361.

It is an arithmetic number, because the mean of its divisors is an integer number (144652068).

Almost surely, 2^1120440121 is an apocalyptic number.

It is an amenable number.

1120440121 is a deficient number, since it is larger than the sum of its proper divisors (36776423).

1120440121 is a wasteful number, since it uses less digits than its factorization.

1120440121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243671.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1120440121 is about 33472.9759806325. The cubic root of 1120440121 is about 1038.6348338471.

Adding to 1120440121 its reverse (1210440211), we get a palindrome (2330880332).

The spelling of 1120440121 in words is "one billion, one hundred twenty million, four hundred forty thousand, one hundred twenty-one".