1323031403 has 8 divisors (see below), whose sum is σ = 1339075920. Its totient is φ = 1307036160.

The previous prime is 1323031397. The next prime is 1323031441. The reversal of 1323031403 is 3041303231.

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 1323031403 - 2¹⁶ = 1322965867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323031453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43208 + ... + 67178.

It is an arithmetic number, because the mean of its divisors is an integer number (167384490).

Almost surely, 2^1323031403 is an apocalyptic number.

1323031403 is a deficient number, since it is larger than the sum of its proper divisors (16044517).

1323031403 is an equidigital number, since it uses as much as digits as its factorization.

1323031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24637.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1323031403 is about 36373.4986356825. The cubic root of 1323031403 is about 1097.8003987414.

Adding to 1323031403 its reverse (3041303231), we get a palindrome (4364334634).

The spelling of 1323031403 in words is "one billion, three hundred twenty-three million, thirty-one thousand, four hundred three".