13405405351321 has 8 divisors (see below), whose sum is σ = 13988295489600. Its totient is φ = 12822519082032.

The previous prime is 13405405351253. The next prime is 13405405351397. The reversal of 13405405351321 is 12315350450431.

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 13405405351321 - 2⁷ = 13405405351193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13405405351721) 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, 7806466 + ... + 9367588.

It is an arithmetic number, because the mean of its divisors is an integer number (1748536936200).

Almost surely, 2^{13405405351321} is an apocalyptic number.

It is an amenable number.

13405405351321 is a deficient number, since it is larger than the sum of its proper divisors (582890138279).

13405405351321 is a wasteful number, since it uses less digits than its factorization.

13405405351321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934495.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 13405405351321 in words is "thirteen trillion, four hundred five billion, four hundred five million, three hundred fifty-one thousand, three hundred twenty-one".