13023221002321 has 2 divisors, whose sum is σ = 13023221002322. Its totient is φ = 13023221002320.

The previous prime is 13023221002291. The next prime is 13023221002343. The reversal of 13023221002321 is 12320012232031.

It is an a-pointer prime, because the next prime (13023221002343) can be obtained adding 13023221002321 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8436492030096 + 4586728972225 = 2904564^2 + 2141665^2 .

It is a cyclic number.

It is not a de Polignac number, because 13023221002321 - 2⁹ = 13023221001809 is a prime.

It is a super-4 number, since 4×13023221002321⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13023221002292 and 13023221002301.

It is not a weakly prime, because it can be changed into another prime (13023221032321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511610501160 + 6511610501161.

It is an arithmetic number, because the mean of its divisors is an integer number (6511610501161).

Almost surely, 2^{13023221002321} is an apocalyptic number.

It is an amenable number.

13023221002321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13023221002321 is an equidigital number, since it uses as much as digits as its factorization.

13023221002321 is an evil number, because the sum of its binary digits is even.

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

Adding to 13023221002321 its reverse (12320012232031), we get a palindrome (25343233234352).

The spelling of 13023221002321 in words is "thirteen trillion, twenty-three billion, two hundred twenty-one million, two thousand, three hundred twenty-one".