13142343545321 has 32 divisors (see below), whose sum is σ = 13981605120000. Its totient is φ = 12318498315072.

The previous prime is 13142343545281. The next prime is 13142343545371. The reversal of 13142343545321 is 12354534324131.

It is a cyclic number.

It is not a de Polignac number, because 13142343545321 - 2³⁴ = 13125163676137 is a prime.

It is a super-3 number, since 3×13142343545321³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13142343545371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255419010 + ... + 2255424836.

It is an arithmetic number, because the mean of its divisors is an integer number (436925160000).

Almost surely, 2^{13142343545321} is an apocalyptic number.

It is an amenable number.

13142343545321 is a deficient number, since it is larger than the sum of its proper divisors (839261574679).

13142343545321 is a wasteful number, since it uses less digits than its factorization.

13142343545321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781.

The product of its digits is 518400, while the sum is 41.

Adding to 13142343545321 its reverse (12354534324131), we get a palindrome (25496877869452).

The spelling of 13142343545321 in words is "thirteen trillion, one hundred forty-two billion, three hundred forty-three million, five hundred forty-five thousand, three hundred twenty-one".