13144336423 has 4 divisors (see below), whose sum is σ = 13167437760. Its totient is φ = 13121235088.

The previous prime is 13144336351. The next prime is 13144336433. The reversal of 13144336423 is 32463344131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32463344131 = 53 ⋅612515927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13144336423 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 (13144336433) 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, 11549815 + ... + 11550952.

It is an arithmetic number, because the mean of its divisors is an integer number (3291859440).

Almost surely, 2^13144336423 is an apocalyptic number.

13144336423 is a deficient number, since it is larger than the sum of its proper divisors (23101337).

13144336423 is an equidigital number, since it uses as much as digits as its factorization.

13144336423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23101336.

The product of its digits is 62208, while the sum is 34.

The spelling of 13144336423 in words is "thirteen billion, one hundred forty-four million, three hundred thirty-six thousand, four hundred twenty-three".