1323312213120 has 256 divisors, whose sum is σ = 4311196202880. Its totient is φ = 345175654400.

The previous prime is 1323312213109. The next prime is 1323312213143. The reversal of 1323312213120 is 213122133231.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 16054252 + ... + 16136468.

Almost surely, 2^{1323312213120} is an apocalyptic number.

1323312213120 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 1323312213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155598101440).

1323312213120 is an abundant number, since it is smaller than the sum of its proper divisors (2987883989760).

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

1323312213120 is a wasteful number, since it uses less digits than its factorization.

1323312213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82423 (or 82411 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1323312213120 its reverse (213122133231), we get a palindrome (1536434346351).

The spelling of 1323312213120 in words is "one trillion, three hundred twenty-three billion, three hundred twelve million, two hundred thirteen thousand, one hundred twenty".