1311312020322 has 8 divisors (see below), whose sum is σ = 2622624040656. Its totient is φ = 437104006772.

The previous prime is 1311312020321. The next prime is 1311312020393. The reversal of 1311312020322 is 2230202131131.

It is a sphenic number, since it is the product of 3 distinct primes.

1311312020322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1311312020321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109276001688 + ... + 109276001699.

It is an arithmetic number, because the mean of its divisors is an integer number (327828005082).

Almost surely, 2^{1311312020322} is an apocalyptic number.

1311312020322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1311312020322 is a wasteful number, since it uses less digits than its factorization.

1311312020322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218552003392.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1311312020322 its reverse (2230202131131), we get a palindrome (3541514151453).

The spelling of 1311312020322 in words is "one trillion, three hundred eleven billion, three hundred twelve million, twenty thousand, three hundred twenty-two".