320441003421 has 16 divisors (see below), whose sum is σ = 532681148928. Its totient is φ = 166462858800.

The previous prime is 320441003419. The next prime is 320441003473. The reversal of 320441003421 is 124300144023.

It is not a de Polignac number, because 320441003421 - 2¹ = 320441003419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320441003391 and 320441003400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320441003521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693595015 + ... + 693595476.

It is an arithmetic number, because the mean of its divisors is an integer number (33292571808).

Almost surely, 2^320441003421 is an apocalyptic number.

It is an amenable number.

320441003421 is a deficient number, since it is larger than the sum of its proper divisors (212240145507).

320441003421 is a wasteful number, since it uses less digits than its factorization.

320441003421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387190512.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 320441003421 its reverse (124300144023), we get a palindrome (444741147444).

The spelling of 320441003421 in words is "three hundred twenty billion, four hundred forty-one million, three thousand, four hundred twenty-one".