1123111432 has 48 divisors (see below), whose sum is σ = 2237559660. Its totient is φ = 528398208.

The previous prime is 1123111411. The next prime is 1123111447. The reversal of 1123111432 is 2341113211.

It can be written as a sum of positive squares in 2 ways, for example, as 1110622276 + 12489156 = 33326^2 + 3534^2 .

It is a super-2 number, since 2×1123111432² = 2522758577378181248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452178 + ... + 454654.

Almost surely, 2^1123111432 is an apocalyptic number.

It is an amenable number.

1123111432 is a deficient number, since it is larger than the sum of its proper divisors (1114448228).

1123111432 is a wasteful number, since it uses less digits than its factorization.

1123111432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2655 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 1123111432 is about 33512.8547277011. The cubic root of 1123111432 is about 1039.4596033743.

Adding to 1123111432 its reverse (2341113211), we get a palindrome (3464224643).

The spelling of 1123111432 in words is "one billion, one hundred twenty-three million, one hundred eleven thousand, four hundred thirty-two".