1323203103 has 6 divisors (see below), whose sum is σ = 1911293384. Its totient is φ = 882135396.

The previous prime is 1323203083. The next prime is 1323203107. The reversal of 1323203103 is 3013023231.

1323203103 is a `hidden beast` number, since 1 + 32 + 320 + 310 + 3 = 666.

It is not a de Polignac number, because 1323203103 - 2⁵ = 1323203071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323203107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73511275 + ... + 73511292.

Almost surely, 2^1323203103 is an apocalyptic number.

1323203103 is a deficient number, since it is larger than the sum of its proper divisors (588090281).

1323203103 is a wasteful number, since it uses less digits than its factorization.

1323203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147022573 (or 147022570 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1323203103 is about 36375.8587939859. The cubic root of 1323203103 is about 1097.8478866984.

Adding to 1323203103 its reverse (3013023231), we get a palindrome (4336226334).

The spelling of 1323203103 in words is "one billion, three hundred twenty-three million, two hundred three thousand, one hundred three".