1123404032 has 72 divisors (see below), whose sum is σ = 2394423360. Its totient is φ = 524482560.

The previous prime is 1123403971. The next prime is 1123404041. The reversal of 1123404032 is 2304043211.

It is a super-3 number, since 3×1123404032³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1123403995 and 1123404013.

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, 343718 + ... + 346970.

It is an arithmetic number, because the mean of its divisors is an integer number (33255880).

Almost surely, 2^1123404032 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 1123404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197211680).

1123404032 is an abundant number, since it is smaller than the sum of its proper divisors (1271019328).

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

1123404032 is an equidigital number, since it uses as much as digits as its factorization.

1123404032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123404032 is about 33517.2199324467. The cubic root of 1123404032 is about 1039.5498643708.

Adding to 1123404032 its reverse (2304043211), we get a palindrome (3427447243).

The spelling of 1123404032 in words is "one billion, one hundred twenty-three million, four hundred four thousand, thirty-two".