204123353 has 4 divisors (see below), whose sum is σ = 233283840. Its totient is φ = 174962868.

The previous prime is 204123349. The next prime is 204123377. The reversal of 204123353 is 353321402.

204123353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 204123353 - 2² = 204123349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204123343) 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, 14580233 + ... + 14580246.

It is an arithmetic number, because the mean of its divisors is an integer number (58320960).

Almost surely, 2^204123353 is an apocalyptic number.

It is an amenable number.

204123353 is a deficient number, since it is larger than the sum of its proper divisors (29160487).

204123353 is an equidigital number, since it uses as much as digits as its factorization.

204123353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160486.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 204123353 is about 14287.1744232371. The cubic root of 204123353 is about 588.7951597685.

Adding to 204123353 its reverse (353321402), we get a palindrome (557444755).

The spelling of 204123353 in words is "two hundred four million, one hundred twenty-three thousand, three hundred fifty-three".