321312301209 has 12 divisors (see below), whose sum is σ = 464430746416. Its totient is φ = 214063749432.

The previous prime is 321312301157. The next prime is 321312301223. The reversal of 321312301209 is 902103213123.

321312301209 is a `hidden beast` number, since 3 + 21 + 312 + 301 + 20 + 9 = 666.

It is not a de Polignac number, because 321312301209 - 2²¹ = 321310204057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321312301259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12023527 + ... + 12050220.

Almost surely, 2^321312301209 is an apocalyptic number.

It is an amenable number.

321312301209 is a deficient number, since it is larger than the sum of its proper divisors (143118445207).

321312301209 is a wasteful number, since it uses less digits than its factorization.

321312301209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24075236 (or 24075233 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

It can be divided in two parts, 321312 and 301209, that added together give a square (622521 = 789²).

The spelling of 321312301209 in words is "three hundred twenty-one billion, three hundred twelve million, three hundred one thousand, two hundred nine".