1143321204 has 12 divisors (see below), whose sum is σ = 2667749504. Its totient is φ = 381107064.

The previous prime is 1143321173. The next prime is 1143321209. The reversal of 1143321204 is 4021233411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143321209) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47638372 + ... + 47638395.

Almost surely, 2^1143321204 is an apocalyptic number.

It is an amenable number.

1143321204 is an abundant number, since it is smaller than the sum of its proper divisors (1524428300).

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

1143321204 is a wasteful number, since it uses less digits than its factorization.

1143321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95276774 (or 95276772 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1143321204 is about 33813.0330494027. The cubic root of 1143321204 is about 1045.6574097991.

Adding to 1143321204 its reverse (4021233411), we get a palindrome (5164554615).

The spelling of 1143321204 in words is "one billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred four".