1123031322 has 192 divisors, whose sum is σ = 3093292800. Its totient is φ = 287078400.

The previous prime is 1123031209. The next prime is 1123031323. The reversal of 1123031322 is 2231303211.

It is a super-2 number, since 2×1123031322² = 2522398700386135368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1123031295 and 1123031304.

It is not an unprimeable number, because it can be changed into a prime (1123031323) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6273829 + ... + 6274007.

It is an arithmetic number, because the mean of its divisors is an integer number (16110900).

Almost surely, 2^1123031322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123031322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546646400).

1123031322 is an abundant number, since it is smaller than the sum of its proper divisors (1970261478).

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

1123031322 is a wasteful number, since it uses less digits than its factorization.

1123031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1123031322 is about 33511.6594933763. The cubic root of 1123031322 is about 1039.4348883768.

Adding to 1123031322 its reverse (2231303211), we get a palindrome (3354334533).

The spelling of 1123031322 in words is "one billion, one hundred twenty-three million, thirty-one thousand, three hundred twenty-two".