13423442223431 has 4 divisors (see below), whose sum is σ = 13423452821832. Its totient is φ = 13423431625032.

The previous prime is 13423442223427. The next prime is 13423442223469. The reversal of 13423442223431 is 13432224432431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13423442223431 - 2² = 13423442223427 is a prime.

It is a super-2 number, since 2×13423442223431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423442223731) 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 in 3 ways as a sum of consecutive naturals, for example, 3093281 + ... + 6034506.

It is an arithmetic number, because the mean of its divisors is an integer number (3355863205458).

Almost surely, 2^{13423442223431} is an apocalyptic number.

13423442223431 is a deficient number, since it is larger than the sum of its proper divisors (10598401).

13423442223431 is an equidigital number, since it uses as much as digits as its factorization.

13423442223431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10598400.

The product of its digits is 331776, while the sum is 38.

Adding to 13423442223431 its reverse (13432224432431), we get a palindrome (26855666655862).

The spelling of 13423442223431 in words is "thirteen trillion, four hundred twenty-three billion, four hundred forty-two million, two hundred twenty-three thousand, four hundred thirty-one".