321213032220023 has 32 divisors (see below), whose sum is σ = 328628654128320. Its totient is φ = 313875378432000.

The previous prime is 321213032219957. The next prime is 321213032220037. The reversal of 321213032220023 is 320022230312123.

It is a cyclic number.

It is not a de Polignac number, because 321213032220023 - 2⁴⁰ = 320113520592247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321213032219974 and 321213032220001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321213032220323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7174555628 + ... + 7174600398.

It is an arithmetic number, because the mean of its divisors is an integer number (10269645441510).

Almost surely, 2^{321213032220023} is an apocalyptic number.

321213032220023 is a deficient number, since it is larger than the sum of its proper divisors (7415621908297).

321213032220023 is a wasteful number, since it uses less digits than its factorization.

321213032220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46419.

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

Adding to 321213032220023 its reverse (320022230312123), we get a palindrome (641235262532146).

The spelling of 321213032220023 in words is "three hundred twenty-one trillion, two hundred thirteen billion, thirty-two million, two hundred twenty thousand, twenty-three".