223310100031321 has 2 divisors, whose sum is σ = 223310100031322. Its totient is φ = 223310100031320.

The previous prime is 223310100031273. The next prime is 223310100031373. The reversal of 223310100031321 is 123130001013322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121293635928921 + 102016464102400 = 11013339^2 + 10100320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223310100031321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223310100031292 and 223310100031301.

It is not a weakly prime, because it can be changed into another prime (223310100041321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111655050015660 + 111655050015661.

It is an arithmetic number, because the mean of its divisors is an integer number (111655050015661).

Almost surely, 2^{223310100031321} is an apocalyptic number.

It is an amenable number.

223310100031321 is a deficient number, since it is larger than the sum of its proper divisors (1).

223310100031321 is an equidigital number, since it uses as much as digits as its factorization.

223310100031321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 223310100031321 its reverse (123130001013322), we get a palindrome (346440101044643).

The spelling of 223310100031321 in words is "two hundred twenty-three trillion, three hundred ten billion, one hundred million, thirty-one thousand, three hundred twenty-one".