1143004312 has 16 divisors (see below), whose sum is σ = 2151285840. Its totient is φ = 569328096.

The previous prime is 1143004309. The next prime is 1143004319. The reversal of 1143004312 is 2134003411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143004312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143004319) 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 3 ways as a sum of consecutive naturals, for example, 269523 + ... + 273730.

It is an arithmetic number, because the mean of its divisors is an integer number (134455365).

Almost surely, 2^1143004312 is an apocalyptic number.

It is an amenable number.

1143004312 is a deficient number, since it is larger than the sum of its proper divisors (1008281528).

1143004312 is a wasteful number, since it uses less digits than its factorization.

1143004312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543522 (or 543518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143004312 is about 33808.3467800483. The cubic root of 1143004312 is about 1045.5607932969.

Adding to 1143004312 its reverse (2134003411), we get a palindrome (3277007723).

Subtracting 1143004312 from its reverse (2134003411), we obtain a palindrome (990999099).

The spelling of 1143004312 in words is "one billion, one hundred forty-three million, four thousand, three hundred twelve".