1121443104 has 96 divisors (see below), whose sum is σ = 3061739520. Its totient is φ = 359020800.

The previous prime is 1121443069. The next prime is 1121443133. The reversal of 1121443104 is 4013441211.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412309 + ... + 415019.

It is an arithmetic number, because the mean of its divisors is an integer number (31893120).

Almost surely, 2^1121443104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121443104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1530869760).

1121443104 is an abundant number, since it is smaller than the sum of its proper divisors (1940296416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121443104 is a wasteful number, since it uses less digits than its factorization.

1121443104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1121443104 is about 33487.9546105760. The cubic root of 1121443104 is about 1038.9446592375.

Adding to 1121443104 its reverse (4013441211), we get a palindrome (5134884315).

The spelling of 1121443104 in words is "one billion, one hundred twenty-one million, four hundred forty-three thousand, one hundred four".