1123231224 has 32 divisors (see below), whose sum is σ = 2812666320. Its totient is φ = 373798656.

The previous prime is 1123231211. The next prime is 1123231229. The reversal of 1123231224 is 4221323211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1123231224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123231229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23119 + ... + 52734.

Almost surely, 2^1123231224 is an apocalyptic number.

It is an amenable number.

1123231224 is an abundant number, since it is smaller than the sum of its proper divisors (1689435096).

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

1123231224 is a wasteful number, since it uses less digits than its factorization.

1123231224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76479 (or 76475 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1123231224 is about 33514.6419345336. The cubic root of 1123231224 is about 1039.4965586025.

Adding to 1123231224 its reverse (4221323211), we get a palindrome (5344554435).

The spelling of 1123231224 in words is "one billion, one hundred twenty-three million, two hundred thirty-one thousand, two hundred twenty-four".