1043042321 has 8 divisors (see below), whose sum is σ = 1071636480. Its totient is φ = 1014469488.

The previous prime is 1043042317. The next prime is 1043042339. The reversal of 1043042321 is 1232403401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1043042321 - 2² = 1043042317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043042293 and 1043042302.

It is not an unprimeable number, because it can be changed into a prime (1043042311) 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 7 ways as a sum of consecutive naturals, for example, 186650 + ... + 192156.

It is an arithmetic number, because the mean of its divisors is an integer number (133954560).

Almost surely, 2^1043042321 is an apocalyptic number.

It is an amenable number.

1043042321 is a deficient number, since it is larger than the sum of its proper divisors (28594159).

1043042321 is an equidigital number, since it uses as much as digits as its factorization.

1043042321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10663.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1043042321 is about 32296.1657321732. The cubic root of 1043042321 is about 1014.1463767020.

Adding to 1043042321 its reverse (1232403401), we get a palindrome (2275445722).

The spelling of 1043042321 in words is "one billion, forty-three million, forty-two thousand, three hundred twenty-one".