1121242304 has 112 divisors (see below), whose sum is σ = 2795016000. Its totient is φ = 443455488.

The previous prime is 1121242289. The next prime is 1121242333. The reversal of 1121242304 is 4032421211.

It is a tau number, because it is divible by the number of its divisors (112).

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, 283412 + ... + 287340.

It is an arithmetic number, because the mean of its divisors is an integer number (24955500).

Almost surely, 2^1121242304 is an apocalyptic number.

1121242304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121242304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397508000).

1121242304 is an abundant number, since it is smaller than the sum of its proper divisors (1673773696).

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

1121242304 is an equidigital number, since it uses as much as digits as its factorization.

1121242304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1121242304 is about 33484.9563834269. The cubic root of 1121242304 is about 1038.8826461225.

Adding to 1121242304 its reverse (4032421211), we get a palindrome (5153663515).

The spelling of 1121242304 in words is "one billion, one hundred twenty-one million, two hundred forty-two thousand, three hundred four".