320322454021 has 8 divisors (see below), whose sum is σ = 329108905944. Its totient is φ = 311582369280.

The previous prime is 320322454007. The next prime is 320322454057. The reversal of 320322454021 is 120454223023.

It can be written as a sum of positive squares in 4 ways, for example, as 27950824225 + 292371629796 = 167185^2 + 540714^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 320322454021 - 2⁹ = 320322453509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320322494021) 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, 11577790 + ... + 11605423.

It is an arithmetic number, because the mean of its divisors is an integer number (41138613243).

Almost surely, 2^320322454021 is an apocalyptic number.

It is an amenable number.

320322454021 is a deficient number, since it is larger than the sum of its proper divisors (8786451923).

320322454021 is a wasteful number, since it uses less digits than its factorization.

320322454021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183591.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 320322454021 its reverse (120454223023), we get a palindrome (440776677044).

The spelling of 320322454021 in words is "three hundred twenty billion, three hundred twenty-two million, four hundred fifty-four thousand, twenty-one".