321321312292 has 12 divisors (see below), whose sum is σ = 562351314700. Its totient is φ = 160649508096.

The previous prime is 321321312217. The next prime is 321321312293. The reversal of 321321312292 is 292213123123.

It can be written as a sum of positive squares in 2 ways, for example, as 261014722816 + 60306589476 = 510896^2 + 245574^2 .

It is not an unprimeable number, because it can be changed into a prime (321321312293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721993 + ... + 2837584.

Almost surely, 2^321321312292 is an apocalyptic number.

It is an amenable number.

321321312292 is a deficient number, since it is larger than the sum of its proper divisors (241030002408).

321321312292 is a wasteful number, since it uses less digits than its factorization.

321321312292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5574030 (or 5574028 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The spelling of 321321312292 in words is "three hundred twenty-one billion, three hundred twenty-one million, three hundred twelve thousand, two hundred ninety-two".