1043321 has 4 divisors (see below), whose sum is σ = 1047552. Its totient is φ = 1039092.

The previous prime is 1043311. The next prime is 1043323. The reversal of 1043321 is 1233401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043296 and 1043305.

It is not an unprimeable number, because it can be changed into a prime (1043323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (261888).

2^1043321 is an apocalyptic number.

It is an amenable number.

1043321 is a deficient number, since it is larger than the sum of its proper divisors (4231).

1043321 is an equidigital number, since it uses as much as digits as its factorization.

1043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1043321 is about 1021.4308591383. The cubic root of 1043321 is about 101.4236688196.

Adding to 1043321 its reverse (1233401), we get a palindrome (2276722).

The spelling of 1043321 in words is "one million, forty-three thousand, three hundred twenty-one".