321305535445 has 8 divisors (see below), whose sum is σ = 405859623840. Its totient is φ = 243515774160.

The previous prime is 321305535433. The next prime is 321305535449. The reversal of 321305535445 is 544535503123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321305535445 - 2¹⁷ = 321305404373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321305535398 and 321305535407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321305535449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691081671 + ... + 1691081860.

It is an arithmetic number, because the mean of its divisors is an integer number (50732452980).

Almost surely, 2^321305535445 is an apocalyptic number.

It is an amenable number.

321305535445 is a deficient number, since it is larger than the sum of its proper divisors (84554088395).

321305535445 is a wasteful number, since it uses less digits than its factorization.

321305535445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382163555.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 321305535445 in words is "three hundred twenty-one billion, three hundred five million, five hundred thirty-five thousand, four hundred forty-five".