13456231524321 has 4 divisors (see below), whose sum is σ = 17941642032432. Its totient is φ = 8970821016212.

The previous prime is 13456231524319. The next prime is 13456231524419. The reversal of 13456231524321 is 12342513265431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13456231524321 - 2¹ = 13456231524319 is a prime.

It is a super-2 number, since 2×13456231524321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13456231534321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242705254051 + ... + 2242705254056.

It is an arithmetic number, because the mean of its divisors is an integer number (4485410508108).

Almost surely, 2^{13456231524321} is an apocalyptic number.

It is an amenable number.

13456231524321 is a deficient number, since it is larger than the sum of its proper divisors (4485410508111).

13456231524321 is an equidigital number, since it uses as much as digits as its factorization.

13456231524321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485410508110.

The product of its digits is 518400, while the sum is 42.

Adding to 13456231524321 its reverse (12342513265431), we get a palindrome (25798744789752).

The spelling of 13456231524321 in words is "thirteen trillion, four hundred fifty-six billion, two hundred thirty-one million, five hundred twenty-four thousand, three hundred twenty-one".