1223320203 has 48 divisors (see below), whose sum is σ = 2055109056. Its totient is φ = 686776320.

The previous prime is 1223320177. The next prime is 1223320207. The reversal of 1223320203 is 3020233221.

It is a happy number.

It is not a de Polignac number, because 1223320203 - 2⁸ = 1223319947 is a prime.

It is a super-2 number, since 2×1223320203² = 2993024638135922418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223320207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2119851 + ... + 2120427.

It is an arithmetic number, because the mean of its divisors is an integer number (42814772).

Almost surely, 2^1223320203 is an apocalyptic number.

1223320203 is a deficient number, since it is larger than the sum of its proper divisors (831788853).

1223320203 is a wasteful number, since it uses less digits than its factorization.

1223320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1223320203 is about 34975.9946677718. The cubic root of 1223320203 is about 1069.4981788132.

Adding to 1223320203 its reverse (3020233221), we get a palindrome (4243553424).

The spelling of 1223320203 in words is "one billion, two hundred twenty-three million, three hundred twenty thousand, two hundred three".