13103013130421 has 2 divisors, whose sum is σ = 13103013130422. Its totient is φ = 13103013130420.

The previous prime is 13103013130331. The next prime is 13103013130429. The reversal of 13103013130421 is 12403131030131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9553594810321 + 3549418320100 = 3090889^2 + 1883990^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103013130421 - 2²² = 13103008936117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13103013130429) 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, 6551506565210 + 6551506565211.

It is an arithmetic number, because the mean of its divisors is an integer number (6551506565211).

Almost surely, 2^{13103013130421} is an apocalyptic number.

It is an amenable number.

13103013130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103013130421 is an equidigital number, since it uses as much as digits as its factorization.

13103013130421 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 23.

Adding to 13103013130421 its reverse (12403131030131), we get a palindrome (25506144160552).

The spelling of 13103013130421 in words is "thirteen trillion, one hundred three billion, thirteen million, one hundred thirty thousand, four hundred twenty-one".