1323202403 has 4 divisors (see below), whose sum is σ = 1330058568. Its totient is φ = 1316346240.

The previous prime is 1323202373. The next prime is 1323202411. The reversal of 1323202403 is 3042023231.

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 1323202403 - 2¹⁰ = 1323201379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323201403) 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, 3427793 + ... + 3428178.

It is an arithmetic number, because the mean of its divisors is an integer number (332514642).

Almost surely, 2^1323202403 is an apocalyptic number.

1323202403 is a deficient number, since it is larger than the sum of its proper divisors (6856165).

1323202403 is an equidigital number, since it uses as much as digits as its factorization.

1323202403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856164.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1323202403 is about 36375.8491722186. The cubic root of 1323202403 is about 1097.8476931041.

Adding to 1323202403 its reverse (3042023231), we get a palindrome (4365225634).

The spelling of 1323202403 in words is "one billion, three hundred twenty-three million, two hundred two thousand, four hundred three".