1140320323 has 4 divisors (see below), whose sum is σ = 1140404440. Its totient is φ = 1140236208.

The previous prime is 1140320299. The next prime is 1140320327. The reversal of 1140320323 is 3230230411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1140320323 - 2⁹ = 1140319811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140320323.

It is not an unprimeable number, because it can be changed into a prime (1140320327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16578 + ... + 50551.

It is an arithmetic number, because the mean of its divisors is an integer number (285101110).

Almost surely, 2^1140320323 is an apocalyptic number.

1140320323 is a deficient number, since it is larger than the sum of its proper divisors (84117).

1140320323 is an equidigital number, since it uses as much as digits as its factorization.

1140320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84116.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1140320323 is about 33768.6292733359. The cubic root of 1140320323 is about 1044.7417607814.

Adding to 1140320323 its reverse (3230230411), we get a palindrome (4370550734).

The spelling of 1140320323 in words is "one billion, one hundred forty million, three hundred twenty thousand, three hundred twenty-three".