20433320133 has 8 divisors (see below), whose sum is σ = 27452400096. Its totient is φ = 13518226800.

The previous prime is 20433320123. The next prime is 20433320161. The reversal of 20433320133 is 33102333402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20433320133 - 2⁶ = 20433320069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433320123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25996198 + ... + 25996983.

It is an arithmetic number, because the mean of its divisors is an integer number (3431550012).

Almost surely, 2^20433320133 is an apocalyptic number.

It is an amenable number.

20433320133 is a deficient number, since it is larger than the sum of its proper divisors (7019079963).

20433320133 is a wasteful number, since it uses less digits than its factorization.

20433320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51993315.

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

Adding to 20433320133 its reverse (33102333402), we get a palindrome (53535653535).

The spelling of 20433320133 in words is "twenty billion, four hundred thirty-three million, three hundred twenty thousand, one hundred thirty-three".