320221123 has 4 divisors (see below), whose sum is σ = 320309640. Its totient is φ = 320132608.

The previous prime is 320221093. The next prime is 320221127. The reversal of 320221123 is 321122023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321122023 = 281 ⋅1142783.

It is a cyclic number.

It is not a de Polignac number, because 320221123 - 2⁵ = 320221091 is a prime.

It is a super-3 number, since 3×320221123³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320221097 and 320221106.

It is not an unprimeable number, because it can be changed into a prime (320221127) 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, 38590 + ... + 46147.

It is an arithmetic number, because the mean of its divisors is an integer number (80077410).

Almost surely, 2^320221123 is an apocalyptic number.

320221123 is a deficient number, since it is larger than the sum of its proper divisors (88517).

320221123 is an equidigital number, since it uses as much as digits as its factorization.

320221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88516.

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

The square root of 320221123 is about 17894.7233284005. The cubic root of 320221123 is about 684.1478903169.

Adding to 320221123 its reverse (321122023), we get a palindrome (641343146).

The spelling of 320221123 in words is "three hundred twenty million, two hundred twenty-one thousand, one hundred twenty-three".