21034033333 has 4 divisors (see below), whose sum is σ = 21034391020. Its totient is φ = 21033675648.

The previous prime is 21034033327. The next prime is 21034033403. The reversal of 21034033333 is 33333043012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4285273444 + 16748759889 = 65462^2 + 129417^2 .

It is a cyclic number.

It is not a de Polignac number, because 21034033333 - 2¹³ = 21034025141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21034033298 and 21034033307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034033133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67548 + ... + 215941.

It is an arithmetic number, because the mean of its divisors is an integer number (5258597755).

Almost surely, 2^21034033333 is an apocalyptic number.

It is an amenable number.

21034033333 is a deficient number, since it is larger than the sum of its proper divisors (357687).

21034033333 is an equidigital number, since it uses as much as digits as its factorization.

21034033333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357686.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 21034033333 its reverse (33333043012), we get a palindrome (54367076345).

The spelling of 21034033333 in words is "twenty-one billion, thirty-four million, thirty-three thousand, three hundred thirty-three".