1233321121312 has 96 divisors (see below), whose sum is σ = 2874221884800. Its totient is φ = 509706774528.

The previous prime is 1233321121309. The next prime is 1233321121339. The reversal of 1233321121312 is 2131211233321.

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, 5137923 + ... + 5372605.

It is an arithmetic number, because the mean of its divisors is an integer number (29939811300).

Almost surely, 2^{1233321121312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233321121312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437110942400).

1233321121312 is an abundant number, since it is smaller than the sum of its proper divisors (1640900763488).

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

1233321121312 is a wasteful number, since it uses less digits than its factorization.

1233321121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235538 (or 235530 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1233321121312 its reverse (2131211233321), we get a palindrome (3364532354633).

The spelling of 1233321121312 in words is "one trillion, two hundred thirty-three billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred twelve".