220123321 has 12 divisors (see below), whose sum is σ = 247586416. Its totient is φ = 195453720.

The previous prime is 220123283. The next prime is 220123333. The reversal of 220123321 is 123321022.

It is not a de Polignac number, because 220123321 - 2¹¹ = 220121273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220123295 and 220123304.

It is not an unprimeable number, because it can be changed into a prime (220123381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15951 + ... + 26356.

Almost surely, 2^220123321 is an apocalyptic number.

It is an amenable number.

220123321 is a deficient number, since it is larger than the sum of its proper divisors (27463095).

220123321 is a wasteful number, since it uses less digits than its factorization.

220123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42372 (or 42361 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220123321 is about 14836.5535418439. The cubic root of 220123321 is about 603.7938504187.

Adding to 220123321 its reverse (123321022), we get a palindrome (343444343).

The spelling of 220123321 in words is "two hundred twenty million, one hundred twenty-three thousand, three hundred twenty-one".