1223030320 has 160 divisors (see below), whose sum is σ = 3107801088. Its totient is φ = 445906944.

The previous prime is 1223030299. The next prime is 1223030327. The reversal of 1223030320 is 230303221.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1223030294 and 1223030303.

It is not an unprimeable number, because it can be changed into a prime (1223030327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9630097 + ... + 9630223.

Almost surely, 2^1223030320 is an apocalyptic number.

1223030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553900544).

1223030320 is an abundant number, since it is smaller than the sum of its proper divisors (1884770768).

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

1223030320 is a wasteful number, since it uses less digits than its factorization.

1223030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1223030320 is about 34971.8503942814. The cubic root of 1223030320 is about 1069.4136945733.

Adding to 1223030320 its reverse (230303221), we get a palindrome (1453333541).

The spelling of 1223030320 in words is "one billion, two hundred twenty-three million, thirty thousand, three hundred twenty".