13421311432209 has 12 divisors (see below), whose sum is σ = 20526711602436. Its totient is φ = 8421215016192.

The previous prime is 13421311432147. The next prime is 13421311432211. The reversal of 13421311432209 is 90223411312431.

13421311432209 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 1 + 3 + 11 + 432 + 209 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10125779502609 + 3295531929600 = 3182103^2 + 1815360^2 .

It is not a de Polignac number, because 13421311432209 - 2²⁴ = 13421294654993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13421311432409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43860494724 + ... + 43860495029.

It is an arithmetic number, because the mean of its divisors is an integer number (1710559300203).

Almost surely, 2^{13421311432209} is an apocalyptic number.

It is an amenable number.

13421311432209 is a deficient number, since it is larger than the sum of its proper divisors (7105400170227).

13421311432209 is a wasteful number, since it uses less digits than its factorization.

13421311432209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87720989776 (or 87720989773 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 13421311432209 in words is "thirteen trillion, four hundred twenty-one billion, three hundred eleven million, four hundred thirty-two thousand, two hundred nine".