1143113329 has 4 divisors (see below), whose sum is σ = 1182531060. Its totient is φ = 1103695600.

The previous prime is 1143113327. The next prime is 1143113353. The reversal of 1143113329 is 9233113411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 551310400 + 591802929 = 23480^2 + 24327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143113329 - 2¹ = 1143113327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143113297 and 1143113306.

It is not an unprimeable number, because it can be changed into a prime (1143113327) 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, 19708822 + ... + 19708879.

It is an arithmetic number, because the mean of its divisors is an integer number (295632765).

Almost surely, 2^1143113329 is an apocalyptic number.

It is an amenable number.

1143113329 is a deficient number, since it is larger than the sum of its proper divisors (39417731).

1143113329 is an equidigital number, since it uses as much as digits as its factorization.

1143113329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39417730.

The product of its digits is 1944, while the sum is 28.

The square root of 1143113329 is about 33809.9590209749. The cubic root of 1143113329 is about 1045.5940332641.

The spelling of 1143113329 in words is "one billion, one hundred forty-three million, one hundred thirteen thousand, three hundred twenty-nine".