320121340444 has 6 divisors (see below), whose sum is σ = 560212345784. Its totient is φ = 160060670220.

The previous prime is 320121340433. The next prime is 320121340463. The reversal of 320121340444 is 444043121023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40015167552 + ... + 40015167559.

Almost surely, 2^320121340444 is an apocalyptic number.

It is an amenable number.

320121340444 is a deficient number, since it is larger than the sum of its proper divisors (240091005340).

320121340444 is a wasteful number, since it uses less digits than its factorization.

320121340444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80030335115 (or 80030335113 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 320121340444 its reverse (444043121023), we get a palindrome (764164461467).

The spelling of 320121340444 in words is "three hundred twenty billion, one hundred twenty-one million, three hundred forty thousand, four hundred forty-four".