21313003201 has 6 divisors (see below), whose sum is σ = 24792677250. Its totient is φ = 18268288416.

The previous prime is 21313003169. The next prime is 21313003213. The reversal of 21313003201 is 10230031312.

It can be written as a sum of positive squares in only one way, i.e., 21311620225 + 1382976 = 145985^2 + 1176^2 .

It is not a de Polignac number, because 21313003201 - 2⁵ = 21313003169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217479576 + ... + 217479673.

It is an arithmetic number, because the mean of its divisors is an integer number (4132112875).

Almost surely, 2^21313003201 is an apocalyptic number.

It is an amenable number.

21313003201 is a deficient number, since it is larger than the sum of its proper divisors (3479674049).

21313003201 is an equidigital number, since it uses as much as digits as its factorization.

21313003201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434959263 (or 434959256 counting only the distinct ones).

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

Adding to 21313003201 its reverse (10230031312), we get a palindrome (31543034513).

The spelling of 21313003201 in words is "twenty-one billion, three hundred thirteen million, three thousand, two hundred one".