13451243423 has 2 divisors, whose sum is σ = 13451243424. Its totient is φ = 13451243422.

The previous prime is 13451243419. The next prime is 13451243441. The reversal of 13451243423 is 32434215431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13451243423 - 2² = 13451243419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13451243423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13451243473) 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 as a sum of consecutive naturals, namely, 6725621711 + 6725621712.

It is an arithmetic number, because the mean of its divisors is an integer number (6725621712).

Almost surely, 2^13451243423 is an apocalyptic number.

13451243423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13451243423 is an equidigital number, since it uses as much as digits as its factorization.

13451243423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

Adding to 13451243423 its reverse (32434215431), we get a palindrome (45885458854).

The spelling of 13451243423 in words is "thirteen billion, four hundred fifty-one million, two hundred forty-three thousand, four hundred twenty-three".