13421305209 has 8 divisors (see below), whose sum is σ = 19271617792. Its totient is φ = 8259264720.

The previous prime is 13421305201. The next prime is 13421305273. The reversal of 13421305209 is 90250312431.

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

It is not a de Polignac number, because 13421305209 - 2³ = 13421305201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13421305201) 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 7 ways as a sum of consecutive naturals, for example, 172067977 + ... + 172068054.

It is an arithmetic number, because the mean of its divisors is an integer number (2408952224).

Almost surely, 2^13421305209 is an apocalyptic number.

It is an amenable number.

13421305209 is a deficient number, since it is larger than the sum of its proper divisors (5850312583).

13421305209 is a wasteful number, since it uses less digits than its factorization.

13421305209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344136047.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 13421305209 in words is "thirteen billion, four hundred twenty-one million, three hundred five thousand, two hundred nine".