1121328960 has 112 divisors (see below), whose sum is σ = 3567232896. Its totient is φ = 298432512.

The previous prime is 1121328917. The next prime is 1121328977. The reversal of 1121328960 is 698231211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725949 + ... + 727491.

Almost surely, 2^1121328960 is an apocalyptic number.

1121328960 is a gapful number since it is divisible by the number (10) 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 1121328960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783616448).

1121328960 is an abundant number, since it is smaller than the sum of its proper divisors (2445903936).

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

1121328960 is a wasteful number, since it uses less digits than its factorization.

1121328960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1121328960 is about 33486.2503126283. The cubic root of 1121328960 is about 1038.9094090250.

The spelling of 1121328960 in words is "one billion, one hundred twenty-one million, three hundred twenty-eight thousand, nine hundred sixty".