1122320032 has 48 divisors (see below), whose sum is σ = 2292820992. Its totient is φ = 540207360.

The previous prime is 1122319999. The next prime is 1122320047. The reversal of 1122320032 is 2300232211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1122319988 and 1122320015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192553 + ... + 198295.

It is an arithmetic number, because the mean of its divisors is an integer number (47767104).

Almost surely, 2^1122320032 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 1122320032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146410496).

1122320032 is an abundant number, since it is smaller than the sum of its proper divisors (1170500960).

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

1122320032 is a wasteful number, since it uses less digits than its factorization.

1122320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1122320032 is about 33501.0452374251. The cubic root of 1122320032 is about 1039.2153944134.

Adding to 1122320032 its reverse (2300232211), we get a palindrome (3422552243).

The spelling of 1122320032 in words is "one billion, one hundred twenty-two million, three hundred twenty thousand, thirty-two".