13321240431017 has 2 divisors, whose sum is σ = 13321240431018. Its totient is φ = 13321240431016.

The previous prime is 13321240430989. The next prime is 13321240431047. The reversal of 13321240431017 is 71013404212331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11765044060441 + 1556196370576 = 3430021^2 + 1247476^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321240431017 - 2²² = 13321236236713 is a prime.

It is not a weakly prime, because it can be changed into another prime (13321240431047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660620215508 + 6660620215509.

It is an arithmetic number, because the mean of its divisors is an integer number (6660620215509).

Almost surely, 2^{13321240431017} is an apocalyptic number.

It is an amenable number.

13321240431017 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321240431017 is an equidigital number, since it uses as much as digits as its factorization.

13321240431017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 13321240431017 its reverse (71013404212331), we get a palindrome (84334644643348).

The spelling of 13321240431017 in words is "thirteen trillion, three hundred twenty-one billion, two hundred forty million, four hundred thirty-one thousand, seventeen".