320032021221323 has 16 divisors (see below), whose sum is σ = 339023824603776. Its totient is φ = 301058723326080.

The previous prime is 320032021221277. The next prime is 320032021221377. The reversal of 320032021221323 is 323122120230023.

It is not a de Polignac number, because 320032021221323 - 2⁶ = 320032021221259 is a prime.

It is a super-3 number, since 3×320032021221323³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320032021221292 and 320032021221301.

It is not an unprimeable number, because it can be changed into a prime (320032021221223) 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, 598009340 + ... + 598544262.

It is an arithmetic number, because the mean of its divisors is an integer number (21188989037736).

Almost surely, 2^{320032021221323} is an apocalyptic number.

320032021221323 is a deficient number, since it is larger than the sum of its proper divisors (18991803382453).

320032021221323 is a wasteful number, since it uses less digits than its factorization.

320032021221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552154.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 320032021221323 its reverse (323122120230023), we get a palindrome (643154141451346).

The spelling of 320032021221323 in words is "three hundred twenty trillion, thirty-two billion, twenty-one million, two hundred twenty-one thousand, three hundred twenty-three".