204134303131 has 4 divisors (see below), whose sum is σ = 222691967064. Its totient is φ = 185576639200.

The previous prime is 204134303083. The next prime is 204134303147. The reversal of 204134303131 is 131303431402.

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 204134303131 - 2¹³ = 204134294939 is a prime.

It is a super-2 number, since 2×204134303131² (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 = 204134303096 and 204134303105.

It is not an unprimeable number, because it can be changed into a prime (204134303171) 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, 9278831950 + ... + 9278831971.

It is an arithmetic number, because the mean of its divisors is an integer number (55672991766).

Almost surely, 2^204134303131 is an apocalyptic number.

204134303131 is a deficient number, since it is larger than the sum of its proper divisors (18557663933).

204134303131 is a wasteful number, since it uses less digits than its factorization.

204134303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18557663932.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 204134303131 its reverse (131303431402), we get a palindrome (335437734533).

The spelling of 204134303131 in words is "two hundred four billion, one hundred thirty-four million, three hundred three thousand, one hundred thirty-one".