204131134403 has 4 divisors (see below), whose sum is σ = 233292725040. Its totient is φ = 174969543768.

The previous prime is 204131134397. The next prime is 204131134453. The reversal of 204131134403 is 304431131402.

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 204131134403 - 2³⁴ = 186951265219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204131134453) 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, 14580795308 + ... + 14580795321.

It is an arithmetic number, because the mean of its divisors is an integer number (58323181260).

Almost surely, 2^204131134403 is an apocalyptic number.

204131134403 is a deficient number, since it is larger than the sum of its proper divisors (29161590637).

204131134403 is an equidigital number, since it uses as much as digits as its factorization.

204131134403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29161590636.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 204131134403 its reverse (304431131402), we get a palindrome (508562265805).

The spelling of 204131134403 in words is "two hundred four billion, one hundred thirty-one million, one hundred thirty-four thousand, four hundred three".