1223303120 has 60 divisors (see below), whose sum is σ = 3079826316. Its totient is φ = 451676160.

The previous prime is 1223303113. The next prime is 1223303129. The reversal of 1223303120 is 213033221.

1223303120 = 2606² + 2607² + ... + 2774².

It can be written as a sum of positive squares in 6 ways, for example, as 520204864 + 703098256 = 22808^2 + 26516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223303129) 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, 31721 + ... + 58760.

Almost surely, 2^1223303120 is an apocalyptic number.

1223303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223303120 is an abundant number, since it is smaller than the sum of its proper divisors (1856523196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223303120 is a wasteful number, since it uses less digits than its factorization.

1223303120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90520 (or 90501 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1223303120 is about 34975.7504565663. The cubic root of 1223303120 is about 1069.4932004703.

Adding to 1223303120 its reverse (213033221), we get a palindrome (1436336341).

The spelling of 1223303120 in words is "one billion, two hundred twenty-three million, three hundred three thousand, one hundred twenty".