321131023030321 has 4 divisors (see below), whose sum is σ = 367006883463232. Its totient is φ = 275255162597412.

The previous prime is 321131023030319. The next prime is 321131023030331. The reversal of 321131023030321 is 123030320131123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321131023030321 - 2¹ = 321131023030319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321131023030331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22937930216445 + ... + 22937930216458.

It is an arithmetic number, because the mean of its divisors is an integer number (91751720865808).

Almost surely, 2^{321131023030321} is an apocalyptic number.

It is an amenable number.

321131023030321 is a deficient number, since it is larger than the sum of its proper divisors (45875860432911).

321131023030321 is an equidigital number, since it uses as much as digits as its factorization.

321131023030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45875860432910.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 321131023030321 its reverse (123030320131123), we get a palindrome (444161343161444).

The spelling of 321131023030321 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, twenty-three million, thirty thousand, three hundred twenty-one".