1323403 has 4 divisors (see below), whose sum is σ = 1336608. Its totient is φ = 1310200.

The previous prime is 1323389. The next prime is 1323409. The reversal of 1323403 is 3043231.

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

It is a cyclic number.

It is not a de Polignac number, because 1323403 - 2¹³ = 1315211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323409) 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, 6451 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (334152).

2^1323403 is an apocalyptic number.

1323403 is a deficient number, since it is larger than the sum of its proper divisors (13205).

1323403 is a wasteful number, since it uses less digits than its factorization.

1323403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1323403 is about 1150.3925417004. The cubic root of 1323403 is about 109.7903168070.

Adding to 1323403 its reverse (3043231), we get a palindrome (4366634).

The spelling of 1323403 in words is "one million, three hundred twenty-three thousand, four hundred three".