1123234320 has 160 divisors (see below), whose sum is σ = 3762509184. Its totient is φ = 275558400.

The previous prime is 1123234313. The next prime is 1123234349. The reversal of 1123234320 is 234323211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1625175 + ... + 1625865.

Almost surely, 2^1123234320 is an apocalyptic number.

1123234320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123234320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881254592).

1123234320 is an abundant number, since it is smaller than the sum of its proper divisors (2639274864).

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

1123234320 is a wasteful number, since it uses less digits than its factorization.

1123234320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1123234320 is about 33514.6881232692. The cubic root of 1123234320 is about 1039.4975136681.

Adding to 1123234320 its reverse (234323211), we get a palindrome (1357557531).

The spelling of 1123234320 in words is "one billion, one hundred twenty-three million, two hundred thirty-four thousand, three hundred twenty".