1143043116 has 24 divisors (see below), whose sum is σ = 2807474880. Its totient is φ = 360960912.

The previous prime is 1143043081. The next prime is 1143043117. The reversal of 1143043116 is 6113403411.

It is not an unprimeable number, because it can be changed into a prime (1143043117) 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, 2506446 + ... + 2506901.

It is an arithmetic number, because the mean of its divisors is an integer number (116978120).

Almost surely, 2^1143043116 is an apocalyptic number.

It is an amenable number.

1143043116 is an abundant number, since it is smaller than the sum of its proper divisors (1664431764).

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

1143043116 is a wasteful number, since it uses less digits than its factorization.

1143043116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013373 (or 5013371 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1143043116 is about 33808.9206571283. The cubic root of 1143043116 is about 1045.5726251222.

Adding to 1143043116 its reverse (6113403411), we get a palindrome (7256446527).

The spelling of 1143043116 in words is "one billion, one hundred forty-three million, forty-three thousand, one hundred sixteen".