1323333012320 has 192 divisors, whose sum is σ = 3442776099840. Its totient is φ = 476684083200.

The previous prime is 1323333012283. The next prime is 1323333012361. The reversal of 1323333012320 is 232103333231.

It is a happy number.

It is a super-2 number, since 2×1323333012320² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1323333012320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136717241 + ... + 136726919.

It is an arithmetic number, because the mean of its divisors is an integer number (17931125520).

Almost surely, 2^{1323333012320} is an apocalyptic number.

1323333012320 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 1323333012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721388049920).

1323333012320 is an abundant number, since it is smaller than the sum of its proper divisors (2119443087520).

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

1323333012320 is a wasteful number, since it uses less digits than its factorization.

1323333012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429 (or 10421 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 1323333012320 its reverse (232103333231), we get a palindrome (1555436345551).

The spelling of 1323333012320 in words is "one trillion, three hundred twenty-three billion, three hundred thirty-three million, twelve thousand, three hundred twenty".