204431500133 has 16 divisors (see below), whose sum is σ = 233975132160. Its totient is φ = 174972798000.

The previous prime is 204431500111. The next prime is 204431500177. The reversal of 204431500133 is 331005134402.

It is not a de Polignac number, because 204431500133 - 2¹⁰ = 204431499109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204431500333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34936658 + ... + 34942508.

It is an arithmetic number, because the mean of its divisors is an integer number (14623445760).

Almost surely, 2^204431500133 is an apocalyptic number.

It is an amenable number.

204431500133 is a deficient number, since it is larger than the sum of its proper divisors (29543632027).

204431500133 is an equidigital number, since it uses as much as digits as its factorization.

204431500133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 204431500133 its reverse (331005134402), we get a palindrome (535436634535).

The spelling of 204431500133 in words is "two hundred four billion, four hundred thirty-one million, five hundred thousand, one hundred thirty-three".