21302200313 has 4 divisors (see below), whose sum is σ = 21302690640. Its totient is φ = 21301709988.

The previous prime is 21302200279. The next prime is 21302200327. The reversal of 21302200313 is 31300220312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302200313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21302200291 and 21302200300.

It is not an unprimeable number, because it can be changed into a prime (21302200373) 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 in 3 ways as a sum of consecutive naturals, for example, 172895 + ... + 269252.

It is an arithmetic number, because the mean of its divisors is an integer number (5325672660).

Almost surely, 2^21302200313 is an apocalyptic number.

It is an amenable number.

21302200313 is a deficient number, since it is larger than the sum of its proper divisors (490327).

21302200313 is an equidigital number, since it uses as much as digits as its factorization.

21302200313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490326.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21302200313 its reverse (31300220312), we get a palindrome (52602420625).

The spelling of 21302200313 in words is "twenty-one billion, three hundred two million, two hundred thousand, three hundred thirteen".