21112003310033 has 8 divisors (see below), whose sum is σ = 22379374910952. Its totient is φ = 19847463826176.

The previous prime is 21112003309981. The next prime is 21112003310051. The reversal of 21112003310033 is 33001330021112.

It can be written as a sum of positive squares in 4 ways, for example, as 15320703303889 + 5791300006144 = 3914167^2 + 2406512^2 .

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

It is not a de Polignac number, because 21112003310033 - 2¹² = 21112003305937 is a prime.

It is a super-2 number, since 2×21112003310033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21112003309987 and 21112003310014.

It is not an unprimeable number, because it can be changed into a prime (21112003310053) 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, 708013910 + ... + 708043727.

It is an arithmetic number, because the mean of its divisors is an integer number (2797421863869).

Almost surely, 2^{21112003310033} is an apocalyptic number.

It is an amenable number.

21112003310033 is a deficient number, since it is larger than the sum of its proper divisors (1267371600919).

21112003310033 is a wasteful number, since it uses less digits than its factorization.

21112003310033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416058531.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21112003310033 its reverse (33001330021112), we get a palindrome (54113333331145).

The spelling of 21112003310033 in words is "twenty-one trillion, one hundred twelve billion, three million, three hundred ten thousand, thirty-three".