21000003211133 has 4 divisors (see below), whose sum is σ = 21001778821440. Its totient is φ = 20998227600828.

The previous prime is 21000003211091. The next prime is 21000003211207. The reversal of 21000003211133 is 33111230000012.

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 a de Polignac number, because none of the positive numbers 2^k-21000003211133 is a prime.

It is a super-2 number, since 2×21000003211133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000003211633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887787413 + ... + 887811066.

It is an arithmetic number, because the mean of its divisors is an integer number (5250444705360).

Almost surely, 2^{21000003211133} is an apocalyptic number.

It is an amenable number.

21000003211133 is a deficient number, since it is larger than the sum of its proper divisors (1775610307).

21000003211133 is a wasteful number, since it uses less digits than its factorization.

21000003211133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775610306.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21000003211133 its reverse (33111230000012), we get a palindrome (54111233211145).

The spelling of 21000003211133 in words is "twenty-one trillion, three million, two hundred eleven thousand, one hundred thirty-three".