13103002321 has 2 divisors, whose sum is σ = 13103002322. Its totient is φ = 13103002320.

The previous prime is 13103002277. The next prime is 13103002387. The reversal of 13103002321 is 12320030131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10741042321 + 2361960000 = 103639^2 + 48600^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103002321 - 2⁷ = 13103002193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13103002295 and 13103002304.

It is not a weakly prime, because it can be changed into another prime (13103002391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551501160 + 6551501161.

It is an arithmetic number, because the mean of its divisors is an integer number (6551501161).

Almost surely, 2^13103002321 is an apocalyptic number.

It is an amenable number.

13103002321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103002321 is an equidigital number, since it uses as much as digits as its factorization.

13103002321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13103002321 its reverse (12320030131), we get a palindrome (25423032452).

The spelling of 13103002321 in words is "thirteen billion, one hundred three million, two thousand, three hundred twenty-one".