21341331003 has 4 divisors (see below), whose sum is σ = 28455108008. Its totient is φ = 14227554000.

The previous prime is 21341330977. The next prime is 21341331041. The reversal of 21341331003 is 30013314312.

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

It is not a de Polignac number, because 21341331003 - 2⁵ = 21341330971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21341331083) 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 3 ways as a sum of consecutive naturals, for example, 3556888498 + ... + 3556888503.

It is an arithmetic number, because the mean of its divisors is an integer number (7113777002).

Almost surely, 2^21341331003 is an apocalyptic number.

21341331003 is a deficient number, since it is larger than the sum of its proper divisors (7113777005).

21341331003 is an equidigital number, since it uses as much as digits as its factorization.

21341331003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113777004.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21341331003 its reverse (30013314312), we get a palindrome (51354645315).

The spelling of 21341331003 in words is "twenty-one billion, three hundred forty-one million, three hundred thirty-one thousand, three".