1143021363 has 32 divisors (see below), whose sum is σ = 1745694720. Its totient is φ = 658484640.

The previous prime is 1143021331. The next prime is 1143021419. The reversal of 1143021363 is 3631203411.

It is a happy number.

It is not a de Polignac number, because 1143021363 - 2⁵ = 1143021331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143021263) 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 31 ways as a sum of consecutive naturals, for example, 119098 + ... + 128336.

It is an arithmetic number, because the mean of its divisors is an integer number (54552960).

Almost surely, 2^1143021363 is an apocalyptic number.

1143021363 is a deficient number, since it is larger than the sum of its proper divisors (602673357).

1143021363 is a wasteful number, since it uses less digits than its factorization.

1143021363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1143021363 is about 33808.5989505629. The cubic root of 1143021363 is about 1045.5659923932.

Adding to 1143021363 its reverse (3631203411), we get a palindrome (4774224774).

The spelling of 1143021363 in words is "one billion, one hundred forty-three million, twenty-one thousand, three hundred sixty-three".