321420244213443 has 8 divisors (see below), whose sum is σ = 428570315307856. Its totient is φ = 214275167964000.

The previous prime is 321420244213429. The next prime is 321420244213603. The reversal of 321420244213443 is 344312442024123.

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

It is not a de Polignac number, because 321420244213443 - 2⁴² = 317022197702339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321420244613443) 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, 1248561088 + ... + 1248818493.

It is an arithmetic number, because the mean of its divisors is an integer number (53571289413482).

Almost surely, 2^{321420244213443} is an apocalyptic number.

321420244213443 is a deficient number, since it is larger than the sum of its proper divisors (107150071094413).

321420244213443 is a wasteful number, since it uses less digits than its factorization.

321420244213443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497422485.

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 321420244213443 its reverse (344312442024123), we get a palindrome (665732686237566).

The spelling of 321420244213443 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred forty-four million, two hundred thirteen thousand, four hundred forty-three".