321223441100231 has 2 divisors, whose sum is σ = 321223441100232. Its totient is φ = 321223441100230.

The previous prime is 321223441100197. The next prime is 321223441100249. The reversal of 321223441100231 is 132001144322123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321223441100231 is a prime.

It is a super-2 number, since 2×321223441100231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321223441100194 and 321223441100203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321223441108231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611720550115 + 160611720550116.

It is an arithmetic number, because the mean of its divisors is an integer number (160611720550116).

Almost surely, 2^{321223441100231} is an apocalyptic number.

321223441100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223441100231 is an equidigital number, since it uses as much as digits as its factorization.

321223441100231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321223441100231 its reverse (132001144322123), we get a palindrome (453224585422354).

The spelling of 321223441100231 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, four hundred forty-one million, one hundred thousand, two hundred thirty-one".