533430320021 has 8 divisors (see below), whose sum is σ = 537155791704. Its totient is φ = 529717807360.

The previous prime is 533430319999. The next prime is 533430320039. The reversal of 533430320021 is 120023034335.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 245371622500 + 288058697521 = 495350^2 + 536711^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 533430320021 - 2¹⁸ = 533430057877 is a prime.

It is a super-3 number, since 3×533430320021³ (a number of 36 digits) contains 333 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 (533430320041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157136 + ... + 3321801.

It is an arithmetic number, because the mean of its divisors is an integer number (67144473963).

Almost surely, 2^533430320021 is an apocalyptic number.

It is an amenable number.

533430320021 is a deficient number, since it is larger than the sum of its proper divisors (3725471683).

533430320021 is a wasteful number, since it uses less digits than its factorization.

533430320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479511.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 533430320021 its reverse (120023034335), we get a palindrome (653453354356).

The spelling of 533430320021 in words is "five hundred thirty-three billion, four hundred thirty million, three hundred twenty thousand, twenty-one".