13440034311323 has 2 divisors, whose sum is σ = 13440034311324. Its totient is φ = 13440034311322.

The previous prime is 13440034311299. The next prime is 13440034311337. The reversal of 13440034311323 is 32311343004431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13440034311323 - 2¹⁶ = 13440034245787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13440034311323.

It is not a weakly prime, because it can be changed into another prime (13440034311343) 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, 6720017155661 + 6720017155662.

It is an arithmetic number, because the mean of its divisors is an integer number (6720017155662).

Almost surely, 2^{13440034311323} is an apocalyptic number.

13440034311323 is a deficient number, since it is larger than the sum of its proper divisors (1).

13440034311323 is an equidigital number, since it uses as much as digits as its factorization.

13440034311323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 13440034311323 its reverse (32311343004431), we get a palindrome (45751377315754).

The spelling of 13440034311323 in words is "thirteen trillion, four hundred forty billion, thirty-four million, three hundred eleven thousand, three hundred twenty-three".