320023133244321 has 16 divisors (see below), whose sum is σ = 459520743294144. Its totient is φ = 196937164119744.

The previous prime is 320023133244313. The next prime is 320023133244323. The reversal of 320023133244321 is 123442331320023.

It is not a de Polignac number, because 320023133244321 - 2³ = 320023133244313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320023133244323) 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, 72750595 + ... + 77023991.

It is an arithmetic number, because the mean of its divisors is an integer number (28720046455884).

Almost surely, 2^{320023133244321} is an apocalyptic number.

It is an amenable number.

320023133244321 is a deficient number, since it is larger than the sum of its proper divisors (139497610049823).

320023133244321 is a wasteful number, since it uses less digits than its factorization.

320023133244321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193600.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 320023133244321 its reverse (123442331320023), we get a palindrome (443465464564344).

The spelling of 320023133244321 in words is "three hundred twenty trillion, twenty-three billion, one hundred thirty-three million, two hundred forty-four thousand, three hundred twenty-one".