1309027312209 has 8 divisors (see below), whose sum is σ = 1745456997952. Its totient is φ = 872641250640.

The previous prime is 1309027312199. The next prime is 1309027312231. The reversal of 1309027312209 is 9022137209031.

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

It is not a de Polignac number, because 1309027312209 - 2²⁵ = 1308993757777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1309027312309) 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, 10835962 + ... + 10956099.

It is an arithmetic number, because the mean of its divisors is an integer number (218182124744).

Almost surely, 2^{1309027312209} is an apocalyptic number.

It is an amenable number.

1309027312209 is a deficient number, since it is larger than the sum of its proper divisors (436429685743).

1309027312209 is a wasteful number, since it uses less digits than its factorization.

1309027312209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21812087.

The product of its (nonzero) digits is 40824, while the sum is 39.

The spelling of 1309027312209 in words is "one trillion, three hundred nine billion, twenty-seven million, three hundred twelve thousand, two hundred nine".