321012320220243 has 12 divisors (see below), whose sum is σ = 463801348012288. Its totient is φ = 213954266339280.

The previous prime is 321012320220211. The next prime is 321012320220253. The reversal of 321012320220243 is 342022023210123.

321012320220243 is a `hidden beast` number, since 3 + 210 + 1 + 2 + 3 + 202 + 2 + 0 + 243 = 666.

It is not a de Polignac number, because 321012320220243 - 2⁵ = 321012320220211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321012320220253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4495557388 + ... + 4495628793.

Almost surely, 2^{321012320220243} is an apocalyptic number.

321012320220243 is a deficient number, since it is larger than the sum of its proper divisors (142789027792045).

321012320220243 is a wasteful number, since it uses less digits than its factorization.

321012320220243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991190154 (or 8991190151 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 321012320220243 its reverse (342022023210123), we get a palindrome (663034343430366).

The spelling of 321012320220243 in words is "three hundred twenty-one trillion, twelve billion, three hundred twenty million, two hundred twenty thousand, two hundred forty-three".