1143442112 has 28 divisors (see below), whose sum is σ = 2324365176. Its totient is φ = 557775360.

The previous prime is 1143442067. The next prime is 1143442121. The reversal of 1143442112 is 2112443411.

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 3 ways as a sum of consecutive naturals, for example, 215258 + ... + 220505.

It is an arithmetic number, because the mean of its divisors is an integer number (83013042).

Almost surely, 2^1143442112 is an apocalyptic number.

It is an amenable number.

1143442112 is an abundant number, since it is smaller than the sum of its proper divisors (1180923064).

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

1143442112 is an equidigital number, since it uses as much as digits as its factorization.

1143442112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435816 (or 435806 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 1143442112 is about 33814.8208926204. The cubic root of 1143442112 is about 1045.6942684670.

Adding to 1143442112 its reverse (2112443411), we get a palindrome (3255885523).

The spelling of 1143442112 in words is "one billion, one hundred forty-three million, four hundred forty-two thousand, one hundred twelve".