1123220321322 has 64 divisors (see below), whose sum is σ = 2541789020160. Its totient is φ = 327774641600.

The previous prime is 1123220321317. The next prime is 1123220321369. The reversal of 1123220321322 is 2231230223211.

It is a junction number, because it is equal to n+sod(n) for n = 1123220321292 and 1123220321301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33054 + ... + 1499177.

It is an arithmetic number, because the mean of its divisors is an integer number (39715453440).

Almost surely, 2^{1123220321322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123220321322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270894510080).

1123220321322 is an abundant number, since it is smaller than the sum of its proper divisors (1418568698838).

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

1123220321322 is a wasteful number, since it uses less digits than its factorization.

1123220321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532659.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1123220321322 its reverse (2231230223211), we get a palindrome (3354450544533).

The spelling of 1123220321322 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, three hundred twenty-one thousand, three hundred twenty-two".