1123140132 has 18 divisors (see below), whose sum is σ = 2839048758. Its totient is φ = 374380032.

The previous prime is 1123140127. The next prime is 1123140191. The reversal of 1123140132 is 2310413211.

1123140132 is a `hidden beast` number, since 1 + 1 + 231 + 401 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 676832256 + 446307876 = 26016^2 + 21126^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1123140132² = 2522887512217954848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15599133 + ... + 15599204.

It is an arithmetic number, because the mean of its divisors is an integer number (157724931).

Almost surely, 2^1123140132 is an apocalyptic number.

1123140132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123140132 is an abundant number, since it is smaller than the sum of its proper divisors (1715908626).

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

1123140132 is a wasteful number, since it uses less digits than its factorization.

1123140132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31198347 (or 31198342 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1123140132 is about 33513.2829188667. The cubic root of 1123140132 is about 1039.4684574190.

Adding to 1123140132 its reverse (2310413211), we get a palindrome (3433553343).

The spelling of 1123140132 in words is "one billion, one hundred twenty-three million, one hundred forty thousand, one hundred thirty-two".