1121320104 has 64 divisors (see below), whose sum is σ = 2929305600. Its totient is φ = 357018816.

The previous prime is 1121320091. The next prime is 1121320129. The reversal of 1121320104 is 4010231211.

1121320104 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 718477 + ... + 720035.

It is an arithmetic number, because the mean of its divisors is an integer number (45770400).

Almost surely, 2^1121320104 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 1121320104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464652800).

1121320104 is an abundant number, since it is smaller than the sum of its proper divisors (1807985496).

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

1121320104 is a wasteful number, since it uses less digits than its factorization.

1121320104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1121320104 is about 33486.1180789891. The cubic root of 1121320104 is about 1038.9066739948.

Adding to 1121320104 its reverse (4010231211), we get a palindrome (5131551315).

The spelling of 1121320104 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred four".