1123123132 has 24 divisors (see below), whose sum is σ = 1991598336. Its totient is φ = 554112048.

The previous prime is 1123123081. The next prime is 1123123213. The reversal of 1123123132 is 2313213211.

It is a super-2 number, since 2×1123123132² = 2522811139266978848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364663 + ... + 367729.

It is an arithmetic number, because the mean of its divisors is an integer number (82983264).

Almost surely, 2^1123123132 is an apocalyptic number.

It is an amenable number.

1123123132 is a deficient number, since it is larger than the sum of its proper divisors (868475204).

1123123132 is a wasteful number, since it uses less digits than its factorization.

1123123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257 (or 4255 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1123123132 is about 33513.0292871295. The cubic root of 1123123132 is about 1039.4632128811.

Adding to 1123123132 its reverse (2313213211), we get a palindrome (3436336343).

The spelling of 1123123132 in words is "one billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty-two".