13213144345423 has 64 divisors (see below), whose sum is σ = 15107477059584. Its totient is φ = 11449855872000.

The previous prime is 13213144345397. The next prime is 13213144345501. The reversal of 13213144345423 is 32454344131231.

It is a cyclic number.

It is not a de Polignac number, because 13213144345423 - 2¹⁷ = 13213144214351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213144342423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8885772186 + ... + 8885773672.

It is an arithmetic number, because the mean of its divisors is an integer number (236054329056).

Almost surely, 2^{13213144345423} is an apocalyptic number.

13213144345423 is a deficient number, since it is larger than the sum of its proper divisors (1894332714161).

13213144345423 is a wasteful number, since it uses less digits than its factorization.

13213144345423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896.

The product of its digits is 414720, while the sum is 40.

Adding to 13213144345423 its reverse (32454344131231), we get a palindrome (45667488476654).

The spelling of 13213144345423 in words is "thirteen trillion, two hundred thirteen billion, one hundred forty-four million, three hundred forty-five thousand, four hundred twenty-three".