1313321211232 has 48 divisors (see below), whose sum is σ = 2742611024160. Its totient is φ = 616923793408.

The previous prime is 1313321211203. The next prime is 1313321211239. The reversal of 1313321211232 is 2321121233131.

It is a junction number, because it is equal to n+sod(n) for n = 1313321211197 and 1313321211206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313321211239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864132 + ... + 2470147.

It is an arithmetic number, because the mean of its divisors is an integer number (57137729670).

Almost surely, 2^{1313321211232} is an apocalyptic number.

It is an amenable number.

1313321211232 is an abundant number, since it is smaller than the sum of its proper divisors (1429289812928).

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

1313321211232 is a wasteful number, since it uses less digits than its factorization.

1313321211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334863 (or 4334855 counting only the distinct ones).

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

Adding to 1313321211232 its reverse (2321121233131), we get a palindrome (3634442444363).

The spelling of 1313321211232 in words is "one trillion, three hundred thirteen billion, three hundred twenty-one million, two hundred eleven thousand, two hundred thirty-two".