21433342233 has 16 divisors (see below), whose sum is σ = 29067480000. Its totient is φ = 14044138560.

The previous prime is 21433342213. The next prime is 21433342253. The reversal of 21433342233 is 33224333412.

It is an interprime number because it is at equal distance from previous prime (21433342213) and next prime (21433342253).

It is not a de Polignac number, because 21433342233 - 2⁵ = 21433342201 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21433342233.

It is not an unprimeable number, because it can be changed into a prime (21433342213) 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 15 ways as a sum of consecutive naturals, for example, 1719363 + ... + 1731783.

It is an arithmetic number, because the mean of its divisors is an integer number (1816717500).

Almost surely, 2^21433342233 is an apocalyptic number.

It is an amenable number.

21433342233 is a deficient number, since it is larger than the sum of its proper divisors (7634137767).

21433342233 is a wasteful number, since it uses less digits than its factorization.

21433342233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22232.

The product of its digits is 31104, while the sum is 30.

Adding to 21433342233 its reverse (33224333412), we get a palindrome (54657675645).

The spelling of 21433342233 in words is "twenty-one billion, four hundred thirty-three million, three hundred forty-two thousand, two hundred thirty-three".