223213303231 has 4 divisors (see below), whose sum is σ = 223239532032. Its totient is φ = 223187074432.

The previous prime is 223213303171. The next prime is 223213303237. The reversal of 223213303231 is 132303312322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132303312322 = 2 ⋅66151656161.

It is a cyclic number.

It is not a de Polignac number, because 223213303231 - 2¹¹ = 223213301183 is a prime.

It is a super-3 number, since 3×223213303231³ (a number of 35 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 = 223213303196 and 223213303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223213303237) 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, 13101631 + ... + 13118656.

It is an arithmetic number, because the mean of its divisors is an integer number (55809883008).

Almost surely, 2^223213303231 is an apocalyptic number.

223213303231 is a deficient number, since it is larger than the sum of its proper divisors (26228801).

223213303231 is an equidigital number, since it uses as much as digits as its factorization.

223213303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26228800.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 223213303231 its reverse (132303312322), we get a palindrome (355516615553).

Subtracting from 223213303231 its reverse (132303312322), we obtain a palindrome (90909990909).

The spelling of 223213303231 in words is "two hundred twenty-three billion, two hundred thirteen million, three hundred three thousand, two hundred thirty-one".