33533020423 has 4 divisors (see below), whose sum is σ = 38323451920. Its totient is φ = 28742588928.

The previous prime is 33533020379. The next prime is 33533020457. The reversal of 33533020423 is 32402033533.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 33533020423 - 2²¹ = 33530923271 is a prime.

It is a super-2 number, since 2×33533020423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33533020391 and 33533020400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33533020723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395215738 + ... + 2395215751.

It is an arithmetic number, because the mean of its divisors is an integer number (9580862980).

Almost surely, 2^33533020423 is an apocalyptic number.

33533020423 is a deficient number, since it is larger than the sum of its proper divisors (4790431497).

33533020423 is an equidigital number, since it uses as much as digits as its factorization.

33533020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790431496.

The product of its (nonzero) digits is 19440, while the sum is 28.

Adding to 33533020423 its reverse (32402033533), we get a palindrome (65935053956).

The spelling of 33533020423 in words is "thirty-three billion, five hundred thirty-three million, twenty thousand, four hundred twenty-three".