21313321003201 has 2 divisors, whose sum is σ = 21313321003202. Its totient is φ = 21313321003200.

The previous prime is 21313321003157. The next prime is 21313321003207. The reversal of 21313321003201 is 10230012331312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21194053690000 + 119267313201 = 4603700^2 + 345351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21313321003201 is a prime.

It is not a weakly prime, because it can be changed into another prime (21313321003207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656660501600 + 10656660501601.

It is an arithmetic number, because the mean of its divisors is an integer number (10656660501601).

Almost surely, 2^{21313321003201} is an apocalyptic number.

It is an amenable number.

21313321003201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21313321003201 is an equidigital number, since it uses as much as digits as its factorization.

21313321003201 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 22.

Adding to 21313321003201 its reverse (10230012331312), we get a palindrome (31543333334513).

The spelling of 21313321003201 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-one million, three thousand, two hundred one".