320221130320401 has 16 divisors (see below), whose sum is σ = 436892347372800. Its totient is φ = 208515367564560.

The previous prime is 320221130320243. The next prime is 320221130320417. The reversal of 320221130320401 is 104023031122023.

It is not a de Polignac number, because 320221130320401 - 2³⁹ = 319671374506513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320221130390401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34752750 + ... + 42990648.

It is an arithmetic number, because the mean of its divisors is an integer number (27305771710800).

Almost surely, 2^{320221130320401} is an apocalyptic number.

It is an amenable number.

320221130320401 is a deficient number, since it is larger than the sum of its proper divisors (116671217052399).

320221130320401 is a wasteful number, since it uses less digits than its factorization.

320221130320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8539276.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 320221130320401 its reverse (104023031122023), we get a palindrome (424244161442424).

The spelling of 320221130320401 in words is "three hundred twenty trillion, two hundred twenty-one billion, one hundred thirty million, three hundred twenty thousand, four hundred one".