131212444101209 has 8 divisors (see below), whose sum is σ = 138931311168288. Its totient is φ = 123493631256640.

The previous prime is 131212444101199. The next prime is 131212444101253. The reversal of 131212444101209 is 902101444212131.

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 131212444101209 - 2¹² = 131212444097113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131212444401209) 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, 8520047 + ... + 18303444.

It is an arithmetic number, because the mean of its divisors is an integer number (17366413896036).

Almost surely, 2^{131212444101209} is an apocalyptic number.

It is an amenable number.

131212444101209 is a deficient number, since it is larger than the sum of its proper divisors (7718867067079).

131212444101209 is a wasteful number, since it uses less digits than its factorization.

131212444101209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27111255.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 131212444101209 in words is "one hundred thirty-one trillion, two hundred twelve billion, four hundred forty-four million, one hundred one thousand, two hundred nine".