13423431252405 has 8 divisors (see below), whose sum is σ = 21477490003872. Its totient is φ = 7159163334608.

The previous prime is 13423431252403. The next prime is 13423431252493. The reversal of 13423431252405 is 50425213432431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13423431252405 - 2¹ = 13423431252403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423431252403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447447708399 + ... + 447447708428.

It is an arithmetic number, because the mean of its divisors is an integer number (2684686250484).

Almost surely, 2^{13423431252405} is an apocalyptic number.

13423431252405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13423431252405 is a deficient number, since it is larger than the sum of its proper divisors (8054058751467).

13423431252405 is an equidigital number, since it uses as much as digits as its factorization.

13423431252405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894895416835.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 13423431252405 its reverse (50425213432431), we get a palindrome (63848644684836).

The spelling of 13423431252405 in words is "thirteen trillion, four hundred twenty-three billion, four hundred thirty-one million, two hundred fifty-two thousand, four hundred five".