321220321123 has 8 divisors (see below), whose sum is σ = 347364972416. Its totient is φ = 295280726400.

The previous prime is 321220321111. The next prime is 321220321141. The reversal of 321220321123 is 321123022123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321220321123 - 2⁹ = 321220320611 is a prime.

It is a super-2 number, since 2×321220321123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321220321094 and 321220321103.

It is not an unprimeable number, because it can be changed into a prime (321290321123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51260883 + ... + 51267148.

It is an arithmetic number, because the mean of its divisors is an integer number (43420621552).

Almost surely, 2^321220321123 is an apocalyptic number.

321220321123 is a deficient number, since it is larger than the sum of its proper divisors (26144651293).

321220321123 is a wasteful number, since it uses less digits than its factorization.

321220321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102528285.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 321220321123 its reverse (321123022123), we get a palindrome (642343343246).

The spelling of 321220321123 in words is "three hundred twenty-one billion, two hundred twenty million, three hundred twenty-one thousand, one hundred twenty-three".