21302322320203 has 4 divisors (see below), whose sum is σ = 21443397302608. Its totient is φ = 21161247337800.

The previous prime is 21302322320141. The next prime is 21302322320329. The reversal of 21302322320203 is 30202322320312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21302322320203 - 2⁴¹ = 19103299064651 is a prime.

It is a super-2 number, since 2×21302322320203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302322326203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70537490976 + ... + 70537491277.

It is an arithmetic number, because the mean of its divisors is an integer number (5360849325652).

Almost surely, 2^{21302322320203} is an apocalyptic number.

21302322320203 is a deficient number, since it is larger than the sum of its proper divisors (141074982405).

21302322320203 is a wasteful number, since it uses less digits than its factorization.

21302322320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141074982404.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21302322320203 its reverse (30202322320312), we get a palindrome (51504644640515).

The spelling of 21302322320203 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-two million, three hundred twenty thousand, two hundred three".