1311022322123 has 2 divisors, whose sum is σ = 1311022322124. Its totient is φ = 1311022322122.

The previous prime is 1311022322111. The next prime is 1311022322147. The reversal of 1311022322123 is 3212232201131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311022322123 - 2⁴ = 1311022322107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311022324123) 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 as a sum of consecutive naturals, namely, 655511161061 + 655511161062.

It is an arithmetic number, because the mean of its divisors is an integer number (655511161062).

Almost surely, 2^{1311022322123} is an apocalyptic number.

1311022322123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311022322123 is an equidigital number, since it uses as much as digits as its factorization.

1311022322123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1311022322123 its reverse (3212232201131), we get a palindrome (4523254523254).

The spelling of 1311022322123 in words is "one trillion, three hundred eleven billion, twenty-two million, three hundred twenty-two thousand, one hundred twenty-three".