1323310203 has 12 divisors (see below), whose sum is σ = 1982242808. Its totient is φ = 882206640.

The previous prime is 1323310199. The next prime is 1323310207. The reversal of 1323310203 is 3020133231.

1323310203 is a `hidden beast` number, since 132 + 331 + 0 + 203 = 666.

It is an interprime number because it is at equal distance from previous prime (1323310199) and next prime (1323310207).

It is not a de Polignac number, because 1323310203 - 2² = 1323310199 is a prime.

It is a super-2 number, since 2×1323310203² = 3502299786727802418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323310207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2722618 + ... + 2723103.

Almost surely, 2^1323310203 is an apocalyptic number.

1323310203 is a deficient number, since it is larger than the sum of its proper divisors (658932605).

1323310203 is an frugal number, since it uses more digits than its factorization.

1323310203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445736 (or 5445724 counting only the distinct ones).

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

The square root of 1323310203 is about 36377.3308943908. The cubic root of 1323310203 is about 1097.8775058189.

Adding to 1323310203 its reverse (3020133231), we get a palindrome (4343443434).

It can be divided in two parts, 13233 and 10203, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 1323310203 in words is "one billion, three hundred twenty-three million, three hundred ten thousand, two hundred three".