21301013243417 has 2 divisors, whose sum is σ = 21301013243418. Its totient is φ = 21301013243416.

The previous prime is 21301013243407. The next prime is 21301013243431. The reversal of 21301013243417 is 71434231010312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21119346345241 + 181666898176 = 4595579^2 + 426224^2 .

It is a cyclic number.

It is not a de Polignac number, because 21301013243417 - 2¹⁰ = 21301013242393 is a prime.

It is not a weakly prime, because it can be changed into another prime (21301013243407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650506621708 + 10650506621709.

It is an arithmetic number, because the mean of its divisors is an integer number (10650506621709).

Almost surely, 2^{21301013243417} is an apocalyptic number.

It is an amenable number.

21301013243417 is a deficient number, since it is larger than the sum of its proper divisors (1).

21301013243417 is an equidigital number, since it uses as much as digits as its factorization.

21301013243417 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21301013243417 its reverse (71434231010312), we get a palindrome (92735244253729).

The spelling of 21301013243417 in words is "twenty-one trillion, three hundred one billion, thirteen million, two hundred forty-three thousand, four hundred seventeen".