13423131144443 has 4 divisors (see below), whose sum is σ = 13612189329648. Its totient is φ = 13234072959240.

The previous prime is 13423131144439. The next prime is 13423131144499. The reversal of 13423131144443 is 34444113132431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13423131144443 - 2² = 13423131144439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13423131144397 and 13423131144406.

It is not an unprimeable number, because it can be changed into a prime (13423131144343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94529092496 + ... + 94529092637.

It is an arithmetic number, because the mean of its divisors is an integer number (3403047332412).

Almost surely, 2^{13423131144443} is an apocalyptic number.

13423131144443 is a deficient number, since it is larger than the sum of its proper divisors (189058185205).

13423131144443 is an equidigital number, since it uses as much as digits as its factorization.

13423131144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189058185204.

The product of its digits is 165888, while the sum is 38.

Adding to 13423131144443 its reverse (34444113132431), we get a palindrome (47867244276874).

The spelling of 13423131144443 in words is "thirteen trillion, four hundred twenty-three billion, one hundred thirty-one million, one hundred forty-four thousand, four hundred forty-three".