1331320343104 has 28 divisors (see below), whose sum is σ = 2641995891004. Its totient is φ = 665620591104.

The previous prime is 1331320343083. The next prime is 1331320343153. The reversal of 1331320343104 is 4013430231331.

It can be written as a sum of positive squares in 2 ways, for example, as 571717454400 + 759602888704 = 756120^2 + 871552^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481474 + ... + 1701310.

Almost surely, 2^{1331320343104} is an apocalyptic number.

It is an amenable number.

1331320343104 is a deficient number, since it is larger than the sum of its proper divisors (1310675547900).

1331320343104 is a wasteful number, since it uses less digits than its factorization.

1331320343104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236902 (or 1236892 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1331320343104 its reverse (4013430231331), we get a palindrome (5344750574435).

The spelling of 1331320343104 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, three hundred forty-three thousand, one hundred four".