204350421132431 has 4 divisors (see below), whose sum is σ = 233543338437072. Its totient is φ = 175157503827792.

The previous prime is 204350421132427. The next prime is 204350421132443. The reversal of 204350421132431 is 134231124053402.

204350421132431 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.

It is a cyclic number.

It is not a de Polignac number, because 204350421132431 - 2² = 204350421132427 is a prime.

It is a super-2 number, since 2×204350421132431² (a number of 29 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 = 204350421132391 and 204350421132400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204350421132131) 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, 14596458652310 + ... + 14596458652323.

It is an arithmetic number, because the mean of its divisors is an integer number (58385834609268).

Almost surely, 2^{204350421132431} is an apocalyptic number.

204350421132431 is a deficient number, since it is larger than the sum of its proper divisors (29192917304641).

204350421132431 is an equidigital number, since it uses as much as digits as its factorization.

204350421132431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29192917304640.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 204350421132431 its reverse (134231124053402), we get a palindrome (338581545185833).

The spelling of 204350421132431 in words is "two hundred four trillion, three hundred fifty billion, four hundred twenty-one million, one hundred thirty-two thousand, four hundred thirty-one".