21433441324533 has 16 divisors (see below), whose sum is σ = 34581686843520. Its totient is φ = 11527228947456.

The previous prime is 21433441324531. The next prime is 21433441324573. The reversal of 21433441324533 is 33542314433412.

It is not a de Polignac number, because 21433441324533 - 2¹ = 21433441324531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433441324531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30018825028 + ... + 30018825741.

It is an arithmetic number, because the mean of its divisors is an integer number (2161355427720).

Almost surely, 2^{21433441324533} is an apocalyptic number.

It is an amenable number.

21433441324533 is a deficient number, since it is larger than the sum of its proper divisors (13148245518987).

21433441324533 is a wasteful number, since it uses less digits than its factorization.

21433441324533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60037650796.

The product of its digits is 1244160, while the sum is 42.

Adding to 21433441324533 its reverse (33542314433412), we get a palindrome (54975755757945).

The spelling of 21433441324533 in words is "twenty-one trillion, four hundred thirty-three billion, four hundred forty-one million, three hundred twenty-four thousand, five hundred thirty-three".