20023224133 has 4 divisors (see below), whose sum is σ = 21843517248. Its totient is φ = 18202931020.

The previous prime is 20023224113. The next prime is 20023224139. The reversal of 20023224133 is 33142232002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20023224133 - 2³³ = 11433289541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023224139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910146541 + ... + 910146562.

It is an arithmetic number, because the mean of its divisors is an integer number (5460879312).

Almost surely, 2^20023224133 is an apocalyptic number.

It is an amenable number.

20023224133 is a deficient number, since it is larger than the sum of its proper divisors (1820293115).

20023224133 is a wasteful number, since it uses less digits than its factorization.

20023224133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820293114.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20023224133 its reverse (33142232002), we get a palindrome (53165456135).

The spelling of 20023224133 in words is "twenty billion, twenty-three million, two hundred twenty-four thousand, one hundred thirty-three".