21042000333 has 6 divisors (see below), whose sum is σ = 30394000494. Its totient is φ = 14028000216.

The previous prime is 21042000313. The next prime is 21042000349. The reversal of 21042000333 is 33300024012.

21042000333 is a `hidden beast` number, since 210 + 420 + 0 + 0 + 3 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19244070729 + 1797929604 = 138723^2 + 42402^2 .

It is not a de Polignac number, because 21042000333 - 2⁹ = 21041999821 is a prime.

It is a super-2 number, since 2×21042000333² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21042000313) 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 5 ways as a sum of consecutive naturals, for example, 1169000010 + ... + 1169000027.

It is an arithmetic number, because the mean of its divisors is an integer number (5065666749).

Almost surely, 2^21042000333 is an apocalyptic number.

It is an amenable number.

21042000333 is a deficient number, since it is larger than the sum of its proper divisors (9352000161).

21042000333 is a wasteful number, since it uses less digits than its factorization.

21042000333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338000043 (or 2338000040 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21042000333 its reverse (33300024012), we get a palindrome (54342024345).

The spelling of 21042000333 in words is "twenty-one billion, forty-two million, three hundred thirty-three", and thus it is an aban number.