204003005131 has 16 divisors (see below), whose sum is σ = 211028336640. Its totient is φ = 197005940640.

The previous prime is 204003005123. The next prime is 204003005161. The reversal of 204003005131 is 131500300402.

It is a cyclic number.

It is not a de Polignac number, because 204003005131 - 2³ = 204003005123 is a prime.

It is a super-2 number, since 2×204003005131² (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 = 204003005099 and 204003005108.

It is not an unprimeable number, because it can be changed into a prime (204003005161) 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, 35127630 + ... + 35133436.

It is an arithmetic number, because the mean of its divisors is an integer number (13189271040).

Almost surely, 2^204003005131 is an apocalyptic number.

204003005131 is a deficient number, since it is larger than the sum of its proper divisors (7025331509).

204003005131 is a wasteful number, since it uses less digits than its factorization.

204003005131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 204003005131 its reverse (131500300402), we get a palindrome (335503305533).

The spelling of 204003005131 in words is "two hundred four billion, three million, five thousand, one hundred thirty-one".