1121079232 has 168 divisors, whose sum is σ = 2823904944. Its totient is φ = 437649408.

The previous prime is 1121079227. The next prime is 1121079233. The reversal of 1121079232 is 2329701211.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1121079232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121079233) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4362048 + ... + 4362304.

It is an arithmetic number, because the mean of its divisors is an integer number (16808958).

Almost surely, 2^1121079232 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 1121079232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411952472).

1121079232 is an abundant number, since it is smaller than the sum of its proper divisors (1702825712).

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

1121079232 is a wasteful number, since it uses less digits than its factorization.

1121079232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1121079232 is about 33482.5212909661. The cubic root of 1121079232 is about 1038.8322791073.

The spelling of 1121079232 in words is "one billion, one hundred twenty-one million, seventy-nine thousand, two hundred thirty-two".