21302322311003 has 4 divisors (see below), whose sum is σ = 21302603431200. Its totient is φ = 21302041190808.

The previous prime is 21302322310991. The next prime is 21302322311093. The reversal of 21302322311003 is 30011322320312.

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 21302322311003 - 2¹⁶ = 21302322245467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21302322311003.

It is not an unprimeable number, because it can be changed into a prime (21302322311093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140446403 + ... + 140597996.

It is an arithmetic number, because the mean of its divisors is an integer number (5325650857800).

Almost surely, 2^{21302322311003} is an apocalyptic number.

21302322311003 is a deficient number, since it is larger than the sum of its proper divisors (281120197).

21302322311003 is an equidigital number, since it uses as much as digits as its factorization.

21302322311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281120196.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21302322311003 its reverse (30011322320312), we get a palindrome (51313644631315).

The spelling of 21302322311003 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-two million, three hundred eleven thousand, three".