321223122203 has 4 divisors (see below), whose sum is σ = 326489075088. Its totient is φ = 315957169320.

The previous prime is 321223122197. The next prime is 321223122229. The reversal of 321223122203 is 302221322123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302221322123 = 7 ⋅43174474589.

It is a cyclic number.

It is not a de Polignac number, because 321223122203 - 2¹⁶ = 321223056667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321223124203) 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, 2632976351 + ... + 2632976472.

It is an arithmetic number, because the mean of its divisors is an integer number (81622268772).

Almost surely, 2^321223122203 is an apocalyptic number.

321223122203 is a deficient number, since it is larger than the sum of its proper divisors (5265952885).

321223122203 is an equidigital number, since it uses as much as digits as its factorization.

321223122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265952884.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 321223122203 its reverse (302221322123), we get a palindrome (623444444326).

The spelling of 321223122203 in words is "three hundred twenty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred three".