321231321321 has 16 divisors (see below), whose sum is σ = 436427196480. Its totient is φ = 210131567360.

The previous prime is 321231321317. The next prime is 321231321373. The reversal of 321231321321 is 123123132123.

It is a cyclic number.

It is not a de Polignac number, because 321231321321 - 2² = 321231321317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321231321291 and 321231321300.

It is not an unprimeable number, because it can be changed into a prime (321231321391) 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, 4557060 + ... + 4627013.

It is an arithmetic number, because the mean of its divisors is an integer number (27276699780).

Almost surely, 2^321231321321 is an apocalyptic number.

It is an amenable number.

321231321321 is a deficient number, since it is larger than the sum of its proper divisors (115195875159).

321231321321 is a wasteful number, since it uses less digits than its factorization.

321231321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184296.

The product of its digits is 1296, while the sum is 24.

Adding to 321231321321 its reverse (123123132123), we get a palindrome (444354453444).

The spelling of 321231321321 in words is "three hundred twenty-one billion, two hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-one".