13209907213 has 8 divisors (see below), whose sum is σ = 13302812600. Its totient is φ = 13117317120.

The previous prime is 13209907199. The next prime is 13209907229. The reversal of 13209907213 is 31270990231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3684732804 + 9525174409 = 60702^2 + 97597^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13209907213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13209907283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5581 + ... + 162637.

It is an arithmetic number, because the mean of its divisors is an integer number (1662851575).

Almost surely, 2^13209907213 is an apocalyptic number.

It is an amenable number.

13209907213 is a deficient number, since it is larger than the sum of its proper divisors (92905387).

13209907213 is a wasteful number, since it uses less digits than its factorization.

13209907213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157647.

The product of its (nonzero) digits is 20412, while the sum is 37.

The spelling of 13209907213 in words is "thirteen billion, two hundred nine million, nine hundred seven thousand, two hundred thirteen".