313212131209 has 8 divisors (see below), whose sum is σ = 335917679040. Its totient is φ = 291128653296.

The previous prime is 313212131189. The next prime is 313212131291. The reversal of 313212131209 is 902131212313.

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 313212131209 - 2¹⁷ = 313212000137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313212135209) 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, 155516437 + ... + 155518450.

It is an arithmetic number, because the mean of its divisors is an integer number (41989709880).

Almost surely, 2^313212131209 is an apocalyptic number.

It is an amenable number.

313212131209 is a deficient number, since it is larger than the sum of its proper divisors (22705547831).

313212131209 is a wasteful number, since it uses less digits than its factorization.

313212131209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311034959.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 313212131209 in words is "three hundred thirteen billion, two hundred twelve million, one hundred thirty-one thousand, two hundred nine".