321350538543 has 8 divisors (see below), whose sum is σ = 428496868656. Its totient is φ = 214218950400.

The previous prime is 321350538539. The next prime is 321350538559. The reversal of 321350538543 is 345835053123.

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

It is not a de Polignac number, because 321350538543 - 2² = 321350538539 is a prime.

It is a super-2 number, since 2×321350538543² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321350538495 and 321350538504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321350538583) 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, 3634528 + ... + 3721893.

It is an arithmetic number, because the mean of its divisors is an integer number (53562108582).

Almost surely, 2^321350538543 is an apocalyptic number.

321350538543 is a deficient number, since it is larger than the sum of its proper divisors (107146330113).

321350538543 is a wasteful number, since it uses less digits than its factorization.

321350538543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370985.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 321350538543 in words is "three hundred twenty-one billion, three hundred fifty million, five hundred thirty-eight thousand, five hundred forty-three".