1312155423323 has 2 divisors, whose sum is σ = 1312155423324. Its totient is φ = 1312155423322.

The previous prime is 1312155423289. The next prime is 1312155423343. The reversal of 1312155423323 is 3233245512131.

It is a strong prime.

It is an emirp because it is prime and its reverse (3233245512131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312155423323 - 2⁸ = 1312155423067 is a prime.

It is a super-2 number, since 2×1312155423323² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312155423343) 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, 656077711661 + 656077711662.

It is an arithmetic number, because the mean of its divisors is an integer number (656077711662).

Almost surely, 2^{1312155423323} is an apocalyptic number.

1312155423323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312155423323 is an equidigital number, since it uses as much as digits as its factorization.

1312155423323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The spelling of 1312155423323 in words is "one trillion, three hundred twelve billion, one hundred fifty-five million, four hundred twenty-three thousand, three hundred twenty-three".