204153433445431 has 4 divisors (see below), whose sum is σ = 204199403599264. Its totient is φ = 204107463291600.

The previous prime is 204153433445347. The next prime is 204153433445477. The reversal of 204153433445431 is 134544334351402.

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 204153433445431 - 2¹⁹ = 204153432921143 is a prime.

It is a super-3 number, since 3×204153433445431³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204153433445131) 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, 22985070255 + ... + 22985079136.

It is an arithmetic number, because the mean of its divisors is an integer number (51049850899816).

Almost surely, 2^{204153433445431} is an apocalyptic number.

204153433445431 is a deficient number, since it is larger than the sum of its proper divisors (45970153833).

204153433445431 is an equidigital number, since it uses as much as digits as its factorization.

204153433445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45970153832.

The product of its (nonzero) digits is 4147200, while the sum is 46.

Adding to 204153433445431 its reverse (134544334351402), we get a palindrome (338697767796833).

The spelling of 204153433445431 in words is "two hundred four trillion, one hundred fifty-three billion, four hundred thirty-three million, four hundred forty-five thousand, four hundred thirty-one".