1331320313322 has 12 divisors (see below), whose sum is σ = 2884527345570. Its totient is φ = 443773437768.

The previous prime is 1331320313321. The next prime is 1331320313369. The reversal of 1331320313322 is 2233130231331.

1331320313322 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 3 + 20 + 313 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1003805613801 + 327514699521 = 1001901^2 + 572289^2 .

It is not an unprimeable number, because it can be changed into a prime (1331320313321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36981119797 + ... + 36981119832.

Almost surely, 2^{1331320313322} is an apocalyptic number.

1331320313322 is an abundant number, since it is smaller than the sum of its proper divisors (1553207032248).

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

1331320313322 is a wasteful number, since it uses less digits than its factorization.

1331320313322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73962239637 (or 73962239634 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1331320313322 its reverse (2233130231331), we get a palindrome (3564450544653).

The spelling of 1331320313322 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, three hundred thirteen thousand, three hundred twenty-two".