1143303112 has 32 divisors (see below), whose sum is σ = 2578881600. Its totient is φ = 464197824.

The previous prime is 1143303103. The next prime is 1143303143. The reversal of 1143303112 is 2113033411.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1143303112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536203 + ... + 538330.

It is an arithmetic number, because the mean of its divisors is an integer number (80590050).

Almost surely, 2^1143303112 is an apocalyptic number.

It is an amenable number.

1143303112 is an abundant number, since it is smaller than the sum of its proper divisors (1435578488).

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

1143303112 is a wasteful number, since it uses less digits than its factorization.

1143303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074565 (or 1074561 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1143303112 is about 33812.7655183660. The cubic root of 1143303112 is about 1045.6518942497.

Adding to 1143303112 its reverse (2113033411), we get a palindrome (3256336523).

The spelling of 1143303112 in words is "one billion, one hundred forty-three million, three hundred three thousand, one hundred twelve".