13043040012321 has 8 divisors (see below), whose sum is σ = 18971694563424. Its totient is φ = 7904872734720.

The previous prime is 13043040012271. The next prime is 13043040012329. The reversal of 13043040012321 is 12321004034031.

It is a happy number.

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

It is not a de Polignac number, because 13043040012321 - 2⁹ = 13043040011809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13043040012291 and 13043040012300.

It is not an unprimeable number, because it can be changed into a prime (13043040012329) 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 7 ways as a sum of consecutive naturals, for example, 197621818336 + ... + 197621818401.

It is an arithmetic number, because the mean of its divisors is an integer number (2371461820428).

Almost surely, 2^{13043040012321} is an apocalyptic number.

13043040012321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13043040012321 is a deficient number, since it is larger than the sum of its proper divisors (5928654551103).

13043040012321 is a wasteful number, since it uses less digits than its factorization.

13043040012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395243636751.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13043040012321 its reverse (12321004034031), we get a palindrome (25364044046352).

The spelling of 13043040012321 in words is "thirteen trillion, forty-three billion, forty million, twelve thousand, three hundred twenty-one".