223221310231 has 2 divisors, whose sum is σ = 223221310232. Its totient is φ = 223221310230.

The previous prime is 223221310189. The next prime is 223221310259. The reversal of 223221310231 is 132013122322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223221310231 - 2¹¹ = 223221308183 is a prime.

It is a super-3 number, since 3×223221310231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223221310271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111610655115 + 111610655116.

It is an arithmetic number, because the mean of its divisors is an integer number (111610655116).

Almost surely, 2^223221310231 is an apocalyptic number.

223221310231 is a deficient number, since it is larger than the sum of its proper divisors (1).

223221310231 is an equidigital number, since it uses as much as digits as its factorization.

223221310231 is an odious number, because the sum of its binary digits is odd.

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

Adding to 223221310231 its reverse (132013122322), we get a palindrome (355234432553).

The spelling of 223221310231 in words is "two hundred twenty-three billion, two hundred twenty-one million, three hundred ten thousand, two hundred thirty-one".