1311200001322 has 8 divisors (see below), whose sum is σ = 1966823280900. Its totient is φ = 655592241024.

The previous prime is 1311200001313. The next prime is 1311200001323. The reversal of 1311200001322 is 2231000021131.

It can be written as a sum of positive squares in 2 ways, for example, as 931767408961 + 379432592361 = 965281^2 + 615981^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1311200001296 and 1311200001305.

It is not an unprimeable number, because it can be changed into a prime (1311200001323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666247 + ... + 4007962.

Almost surely, 2^{1311200001322} is an apocalyptic number.

1311200001322 is a deficient number, since it is larger than the sum of its proper divisors (655623279578).

1311200001322 is an equidigital number, since it uses as much as digits as its factorization.

1311200001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759640.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1311200001322 its reverse (2231000021131), we get a palindrome (3542200022453).

The spelling of 1311200001322 in words is "one trillion, three hundred eleven billion, two hundred million, one thousand, three hundred twenty-two".