321214144232321 has 4 divisors (see below), whose sum is σ = 335179976590272. Its totient is φ = 307248311874372.

The previous prime is 321214144232279. The next prime is 321214144232353. The reversal of 321214144232321 is 123232441412123.

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 321214144232321 - 2¹⁰ = 321214144231297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321214144232921) 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, 6982916178941 + ... + 6982916178986.

It is an arithmetic number, because the mean of its divisors is an integer number (83794994147568).

Almost surely, 2^{321214144232321} is an apocalyptic number.

It is an amenable number.

321214144232321 is a deficient number, since it is larger than the sum of its proper divisors (13965832357951).

321214144232321 is a wasteful number, since it uses less digits than its factorization.

321214144232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13965832357950.

The product of its digits is 55296, while the sum is 35.

Adding to 321214144232321 its reverse (123232441412123), we get a palindrome (444446585644444).

The spelling of 321214144232321 in words is "three hundred twenty-one trillion, two hundred fourteen billion, one hundred forty-four million, two hundred thirty-two thousand, three hundred twenty-one".