204140004131 has 32 divisors (see below), whose sum is σ = 240267202560. Its totient is φ = 169801977600.

The previous prime is 204140004127. The next prime is 204140004143. The reversal of 204140004131 is 131400041402.

204140004131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 204140004131 - 2² = 204140004127 is a prime.

It is a super-2 number, since 2×204140004131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204140000131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44404925 + ... + 44409521.

It is an arithmetic number, because the mean of its divisors is an integer number (7508350080).

Almost surely, 2^204140004131 is an apocalyptic number.

204140004131 is a deficient number, since it is larger than the sum of its proper divisors (36127198429).

204140004131 is a wasteful number, since it uses less digits than its factorization.

204140004131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204140004131 its reverse (131400041402), we get a palindrome (335540045533).

The spelling of 204140004131 in words is "two hundred four billion, one hundred forty million, four thousand, one hundred thirty-one".