1323111311000 has 32 divisors (see below), whose sum is σ = 3096080470080. Its totient is φ = 529244524000.

The previous prime is 1323111310931. The next prime is 1323111311051. The reversal of 1323111311000 is 1131113231.

It is a super-2 number, since 2×1323111311000² (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 1323111311000.

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, 661554656 + ... + 661556655.

It is an arithmetic number, because the mean of its divisors is an integer number (96752514690).

Almost surely, 2^{1323111311000} is an apocalyptic number.

1323111311000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323111311000 is an abundant number, since it is smaller than the sum of its proper divisors (1772969159080).

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

1323111311000 is a wasteful number, since it uses less digits than its factorization.

1323111311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323111332 (or 1323111318 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1323111311000 its reverse (1131113231), we get a palindrome (1324242424231).

The spelling of 1323111311000 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, three hundred eleven thousand".