21103110311333 has 4 divisors (see below), whose sum is σ = 21104283571680. Its totient is φ = 21101937050988.

The previous prime is 21103110311321. The next prime is 21103110311347. The reversal of 21103110311333 is 33311301130112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21103110311333 - 2¹⁶ = 21103110245797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21103110311299 and 21103110311308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103110314333) 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 3 ways as a sum of consecutive naturals, for example, 586603193 + ... + 586639166.

It is an arithmetic number, because the mean of its divisors is an integer number (5276070892920).

Almost surely, 2^{21103110311333} is an apocalyptic number.

It is an amenable number.

21103110311333 is a deficient number, since it is larger than the sum of its proper divisors (1173260347).

21103110311333 is a wasteful number, since it uses less digits than its factorization.

21103110311333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173260346.

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

Adding to 21103110311333 its reverse (33311301130112), we get a palindrome (54414411441445).

The spelling of 21103110311333 in words is "twenty-one trillion, one hundred three billion, one hundred ten million, three hundred eleven thousand, three hundred thirty-three".