1323434403 has 8 divisors (see below), whose sum is σ = 1960643600. Its totient is φ = 882289584.

The previous prime is 1323434383. The next prime is 1323434471. The reversal of 1323434403 is 3044343231.

It is not a de Polignac number, because 1323434403 - 2²² = 1319240099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 49016089 = 1323434403 / (1 + 3 + 2 + 3 + 4 + 3 + 4 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323434503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24508018 + ... + 24508071.

It is an arithmetic number, because the mean of its divisors is an integer number (245080450).

Almost surely, 2^1323434403 is an apocalyptic number.

1323434403 is a deficient number, since it is larger than the sum of its proper divisors (637209197).

1323434403 is an equidigital number, since it uses as much as digits as its factorization.

1323434403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49016098 (or 49016092 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 1323434403 is about 36379.0379614415. The cubic root of 1323434403 is about 1097.9118520415.

Adding to 1323434403 its reverse (3044343231), we get a palindrome (4367777634).

The spelling of 1323434403 in words is "one billion, three hundred twenty-three million, four hundred thirty-four thousand, four hundred three".