321232220093 has 4 divisors (see below), whose sum is σ = 322041369660. Its totient is φ = 320423070528.

The previous prime is 321232220063. The next prime is 321232220117. The reversal of 321232220093 is 390022232123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162032816089 + 159199404004 = 402533^2 + 398998^2 .

It is a cyclic number.

It is not a de Polignac number, because 321232220093 - 2²⁸ = 320963784637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321232220053) 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, 404574188 + ... + 404574981.

It is an arithmetic number, because the mean of its divisors is an integer number (80510342415).

Almost surely, 2^321232220093 is an apocalyptic number.

It is an amenable number.

321232220093 is a deficient number, since it is larger than the sum of its proper divisors (809149567).

321232220093 is an equidigital number, since it uses as much as digits as its factorization.

321232220093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809149566.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 321232220093 in words is "three hundred twenty-one billion, two hundred thirty-two million, two hundred twenty thousand, ninety-three".