1143242112 has 64 divisors (see below), whose sum is σ = 3215386800. Its totient is φ = 358662144.

The previous prime is 1143242069. The next prime is 1143242119. The reversal of 1143242112 is 2112423411.

It is a tau number, because it is divible by the number of its divisors (64).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143242119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81037 + ... + 94092.

Almost surely, 2^1143242112 is an apocalyptic number.

1143242112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143242112 is an abundant number, since it is smaller than the sum of its proper divisors (2072144688).

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

1143242112 is a wasteful number, since it uses less digits than its factorization.

1143242112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175163 (or 175151 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1143242112 is about 33811.8634801455. The cubic root of 1143242112 is about 1045.6332972859.

Adding to 1143242112 its reverse (2112423411), we get a palindrome (3255665523).

The spelling of 1143242112 in words is "one billion, one hundred forty-three million, two hundred forty-two thousand, one hundred twelve".