1323223320 has 32 divisors (see below), whose sum is σ = 3969670320. Its totient is φ = 352859520.

The previous prime is 1323223283. The next prime is 1323223399. The reversal of 1323223320 is 233223231.

1323223320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5513311 + ... + 5513550.

Almost surely, 2^1323223320 is an apocalyptic number.

1323223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323223320 is an abundant number, since it is smaller than the sum of its proper divisors (2646447000).

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

1323223320 is a wasteful number, since it uses less digits than its factorization.

1323223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026875 (or 11026871 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1323223320 is about 36376.1366832708. The cubic root of 1323223320 is about 1097.8534779483.

Adding to 1323223320 its reverse (233223231), we get a palindrome (1556446551).

The spelling of 1323223320 in words is "one billion, three hundred twenty-three million, two hundred twenty-three thousand, three hundred twenty".