204512760431 has 4 divisors (see below), whose sum is σ = 233728869072. Its totient is φ = 175296651792.

The previous prime is 204512760421. The next prime is 204512760433. The reversal of 204512760431 is 134067215402.

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 204512760431 - 2²² = 204508566127 is a prime.

It is a super-2 number, since 2×204512760431² (a number of 23 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 = 204512760391 and 204512760400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204512760433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14608054310 + ... + 14608054323.

It is an arithmetic number, because the mean of its divisors is an integer number (58432217268).

Almost surely, 2^204512760431 is an apocalyptic number.

204512760431 is a deficient number, since it is larger than the sum of its proper divisors (29216108641).

204512760431 is an equidigital number, since it uses as much as digits as its factorization.

204512760431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29216108640.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 204512760431 its reverse (134067215402), we get a palindrome (338579975833).

The spelling of 204512760431 in words is "two hundred four billion, five hundred twelve million, seven hundred sixty thousand, four hundred thirty-one".