21310113131303 has 8 divisors (see below), whose sum is σ = 21712616411616. Its totient is φ = 20907625616800.

The previous prime is 21310113131243. The next prime is 21310113131339. The reversal of 21310113131303 is 30313131101312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21310113131303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310113130303) 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 7 ways as a sum of consecutive naturals, for example, 1194683 + ... + 6636828.

It is an arithmetic number, because the mean of its divisors is an integer number (2714077051452).

Almost surely, 2^{21310113131303} is an apocalyptic number.

21310113131303 is a deficient number, since it is larger than the sum of its proper divisors (402503280313).

21310113131303 is an equidigital number, since it uses as much as digits as its factorization.

21310113131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882905.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 21310113131303 its reverse (30313131101312), we get a palindrome (51623244232615).

The spelling of 21310113131303 in words is "twenty-one trillion, three hundred ten billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred three".