1123215232 has 32 divisors (see below), whose sum is σ = 2239191720. Its totient is φ = 561222144.

The previous prime is 1123215227. The next prime is 1123215239. The reversal of 1123215232 is 2325123211.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1123215232² = 2523224914793627648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123215239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313998 + ... + 317554.

Almost surely, 2^1123215232 is an apocalyptic number.

It is an amenable number.

1123215232 is a deficient number, since it is larger than the sum of its proper divisors (1115976488).

1123215232 is an equidigital number, since it uses as much as digits as its factorization.

1123215232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6038 (or 6026 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1123215232 is about 33514.4033513951. The cubic root of 1123215232 is about 1039.4916253031.

Adding to 1123215232 its reverse (2325123211), we get a palindrome (3448338443).

The spelling of 1123215232 in words is "one billion, one hundred twenty-three million, two hundred fifteen thousand, two hundred thirty-two".