21103013001133 has 48 divisors (see below), whose sum is σ = 26033935273920. Its totient is φ = 16997113115136.

The previous prime is 21103013001043. The next prime is 21103013001139. The reversal of 21103013001133 is 33110031030112.

It is a de Polignac number, because none of the positive numbers 2^k-21103013001133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21103013001133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103013001139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1718900191 + ... + 1718912467.

It is an arithmetic number, because the mean of its divisors is an integer number (542373651540).

Almost surely, 2^{21103013001133} is an apocalyptic number.

It is an amenable number.

21103013001133 is a deficient number, since it is larger than the sum of its proper divisors (4930922272787).

21103013001133 is a wasteful number, since it uses less digits than its factorization.

21103013001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15434 (or 15427 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 21103013001133 its reverse (33110031030112), we get a palindrome (54213044031245).

The spelling of 21103013001133 in words is "twenty-one trillion, one hundred three billion, thirteen million, one thousand, one hundred thirty-three".