323311403 has 4 divisors (see below), whose sum is σ = 326512608. Its totient is φ = 320110200.

The previous prime is 323311361. The next prime is 323311427. The reversal of 323311403 is 304113323.

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 323311403 - 2⁸ = 323311147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323311433) 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, 1600451 + ... + 1600652.

It is an arithmetic number, because the mean of its divisors is an integer number (81628152).

Almost surely, 2^323311403 is an apocalyptic number.

323311403 is a deficient number, since it is larger than the sum of its proper divisors (3201205).

323311403 is a wasteful number, since it uses less digits than its factorization.

323311403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201204.

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

The square root of 323311403 is about 17980.8621317222. The cubic root of 323311403 is about 686.3416283260.

Adding to 323311403 its reverse (304113323), we get a palindrome (627424726).

The spelling of 323311403 in words is "three hundred twenty-three million, three hundred eleven thousand, four hundred three".