320231521346343 has 16 divisors (see below), whose sum is σ = 429189714345696. Its totient is φ = 212380515164160.

The previous prime is 320231521346333. The next prime is 320231521346351. The reversal of 320231521346343 is 343643125132023.

It is not a de Polignac number, because 320231521346343 - 2²⁵ = 320231487791911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320231521346295 and 320231521346304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320231521346333) 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, 131930853 + ... + 134336193.

It is an arithmetic number, because the mean of its divisors is an integer number (26824357146606).

Almost surely, 2^{320231521346343} is an apocalyptic number.

320231521346343 is a deficient number, since it is larger than the sum of its proper divisors (108958192999353).

320231521346343 is a wasteful number, since it uses less digits than its factorization.

320231521346343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635474.

The product of its (nonzero) digits is 933120, while the sum is 42.

Adding to 320231521346343 its reverse (343643125132023), we get a palindrome (663874646478366).

The spelling of 320231521346343 in words is "three hundred twenty trillion, two hundred thirty-one billion, five hundred twenty-one million, three hundred forty-six thousand, three hundred forty-three".