1331320323332 has 24 divisors (see below), whose sum is σ = 2467455635736. Its totient is φ = 626351963648.

The previous prime is 1331320323331. The next prime is 1331320323407. The reversal of 1331320323332 is 2333230231331.

It can be written as a sum of positive squares in 4 ways, for example, as 852697109056 + 478623214276 = 923416^2 + 691826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1331320323295 and 1331320323304.

It is not an unprimeable number, because it can be changed into a prime (1331320323331) 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, 2087483 + ... + 2649570.

It is an arithmetic number, because the mean of its divisors is an integer number (102810651489).

Almost surely, 2^{1331320323332} is an apocalyptic number.

It is an amenable number.

1331320323332 is a deficient number, since it is larger than the sum of its proper divisors (1136135312404).

1331320323332 is a wasteful number, since it uses less digits than its factorization.

1331320323332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741207 (or 4741205 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 1331320323332 its reverse (2333230231331), we get a palindrome (3664550554663).

The spelling of 1331320323332 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, three hundred twenty-three thousand, three hundred thirty-two".