1323133232320 has 112 divisors (see below), whose sum is σ = 3288952251648. Its totient is φ = 506049223680.

The previous prime is 1323133232303. The next prime is 1323133232411. The reversal of 1323133232320 is 232323313231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20067247 + ... + 20133073.

It is an arithmetic number, because the mean of its divisors is an integer number (29365645104).

Almost surely, 2^{1323133232320} is an apocalyptic number.

1323133232320 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 1323133232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644476125824).

1323133232320 is an abundant number, since it is smaller than the sum of its proper divisors (1965819019328).

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

1323133232320 is a wasteful number, since it uses less digits than its factorization.

1323133232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68598 (or 68588 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 1323133232320 its reverse (232323313231), we get a palindrome (1555456545551).

It can be divided in two parts, 132313 and 3232320, that added together give a palindrome (3364633).

The spelling of 1323133232320 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-three million, two hundred thirty-two thousand, three hundred twenty".