21331301003 has 8 divisors (see below), whose sum is σ = 21473736768. Its totient is φ = 21189290824.

The previous prime is 21331300979. The next prime is 21331301011. The reversal of 21331301003 is 30010313312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21331301003 - 2⁸ = 21331300747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21331301093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5501 + ... + 206622.

It is an arithmetic number, because the mean of its divisors is an integer number (2684217096).

Almost surely, 2^21331301003 is an apocalyptic number.

21331301003 is a deficient number, since it is larger than the sum of its proper divisors (142435765).

21331301003 is a wasteful number, since it uses less digits than its factorization.

21331301003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212793.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21331301003 its reverse (30010313312), we get a palindrome (51341614315).

The spelling of 21331301003 in words is "twenty-one billion, three hundred thirty-one million, three hundred one thousand, three".