20003223133 has 4 divisors (see below), whose sum is σ = 20003571040. Its totient is φ = 20002875228.

The previous prime is 20003223101. The next prime is 20003223137. The reversal of 20003223133 is 33132230002.

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 20003223133 - 2⁵ = 20003223101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20003223133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003223137) 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, 64935 + ... + 210292.

It is an arithmetic number, because the mean of its divisors is an integer number (5000892760).

Almost surely, 2^20003223133 is an apocalyptic number.

It is an amenable number.

20003223133 is a deficient number, since it is larger than the sum of its proper divisors (347907).

20003223133 is an equidigital number, since it uses as much as digits as its factorization.

20003223133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347906.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20003223133 its reverse (33132230002), we get a palindrome (53135453135).

The spelling of 20003223133 in words is "twenty billion, three million, two hundred twenty-three thousand, one hundred thirty-three".