1223343320 has 32 divisors (see below), whose sum is σ = 2872199520. Its totient is φ = 468061440.

The previous prime is 1223343299. The next prime is 1223343323. The reversal of 1223343320 is 233433221.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223343323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663941 + ... + 665780.

It is an arithmetic number, because the mean of its divisors is an integer number (89756235).

Almost surely, 2^1223343320 is an apocalyptic number.

1223343320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223343320 is an abundant number, since it is smaller than the sum of its proper divisors (1648856200).

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

1223343320 is a wasteful number, since it uses less digits than its factorization.

1223343320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329755 (or 1329751 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1223343320 is about 34976.3251357257. The cubic root of 1223343320 is about 1069.5049155159.

Adding to 1223343320 its reverse (233433221), we get a palindrome (1456776541).

The spelling of 1223343320 in words is "one billion, two hundred twenty-three million, three hundred forty-three thousand, three hundred twenty".