20433230133 has 4 divisors (see below), whose sum is σ = 27244306848. Its totient is φ = 13622153420.

The previous prime is 20433230117. The next prime is 20433230137. The reversal of 20433230133 is 33103233402.

It is a happy number.

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 20433230133 - 2⁴ = 20433230117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433230137) 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, 3405538353 + ... + 3405538358.

It is an arithmetic number, because the mean of its divisors is an integer number (6811076712).

Almost surely, 2^20433230133 is an apocalyptic number.

It is an amenable number.

20433230133 is a deficient number, since it is larger than the sum of its proper divisors (6811076715).

20433230133 is an equidigital number, since it uses as much as digits as its factorization.

20433230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811076714.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20433230133 its reverse (33103233402), we get a palindrome (53536463535).

The spelling of 20433230133 in words is "twenty billion, four hundred thirty-three million, two hundred thirty thousand, one hundred thirty-three".