21313320303111 has 32 divisors (see below), whose sum is σ = 28725691737600. Its totient is φ = 14055763962240.

The previous prime is 21313320303109. The next prime is 21313320303133. The reversal of 21313320303111 is 11130302331312.

It is not a de Polignac number, because 21313320303111 - 2¹ = 21313320303109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313320303101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1251581145 + ... + 1251598173.

It is an arithmetic number, because the mean of its divisors is an integer number (897677866800).

Almost surely, 2^{21313320303111} is an apocalyptic number.

21313320303111 is a deficient number, since it is larger than the sum of its proper divisors (7412371434489).

21313320303111 is a wasteful number, since it uses less digits than its factorization.

21313320303111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29239.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 21313320303111 its reverse (11130302331312), we get a palindrome (32443622634423).

The spelling of 21313320303111 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty million, three hundred three thousand, one hundred eleven".