321004234420243 has 4 divisors (see below), whose sum is σ = 350186437549368. Its totient is φ = 291822031291120.

The previous prime is 321004234420231. The next prime is 321004234420321. The reversal of 321004234420243 is 342024432400123.

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

It is not a de Polignac number, because 321004234420243 - 2¹³ = 321004234412051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321004234420199 and 321004234420208.

It is not an unprimeable number, because it can be changed into a prime (321004234520243) 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, 14591101564546 + ... + 14591101564567.

It is an arithmetic number, because the mean of its divisors is an integer number (87546609387342).

Almost surely, 2^{321004234420243} is an apocalyptic number.

321004234420243 is a deficient number, since it is larger than the sum of its proper divisors (29182203129125).

321004234420243 is a wasteful number, since it uses less digits than its factorization.

321004234420243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29182203129124.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 321004234420243 its reverse (342024432400123), we get a palindrome (663028666820366).

The spelling of 321004234420243 in words is "three hundred twenty-one trillion, four billion, two hundred thirty-four million, four hundred twenty thousand, two hundred forty-three".