1143321016 has 64 divisors (see below), whose sum is σ = 2249402400. Its totient is φ = 544301568.

The previous prime is 1143320989. The next prime is 1143321059. The reversal of 1143321016 is 6101233411.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4250130 + ... + 4250398.

Almost surely, 2^1143321016 is an apocalyptic number.

It is an amenable number.

1143321016 is a deficient number, since it is larger than the sum of its proper divisors (1106081384).

1143321016 is a wasteful number, since it uses less digits than its factorization.

1143321016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1143321016 is about 33813.0302694095. The cubic root of 1143321016 is about 1045.6573524855.

Adding to 1143321016 its reverse (6101233411), we get a palindrome (7244554427).

The spelling of 1143321016 in words is "one billion, one hundred forty-three million, three hundred twenty-one thousand, sixteen".