20233133 has 4 divisors (see below), whose sum is σ = 20441820. Its totient is φ = 20024448.

The previous prime is 20233127. The next prime is 20233141. The reversal of 20233133 is 33133202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12376324 + 7856809 = 3518^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233133 - 2⁶ = 20233069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104198 + ... + 104391.

It is an arithmetic number, because the mean of its divisors is an integer number (5110455).

Almost surely, 2^20233133 is an apocalyptic number.

It is an amenable number.

20233133 is a deficient number, since it is larger than the sum of its proper divisors (208687).

20233133 is an equidigital number, since it uses as much as digits as its factorization.

20233133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208686.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 20233133 is about 4498.1254984716. The cubic root of 20233133 is about 272.4923904392.

Adding to 20233133 its reverse (33133202), we get a palindrome (53366335).

The spelling of 20233133 in words is "twenty million, two hundred thirty-three thousand, one hundred thirty-three".