204234420131 has 16 divisors (see below), whose sum is σ = 251415810048. Its totient is φ = 162045338400.

The previous prime is 204234420011. The next prime is 204234420139. The reversal of 204234420131 is 131024432402.

It is a cyclic number.

It is not a de Polignac number, because 204234420131 - 2²⁶ = 204167311267 is a prime.

It is a super-2 number, since 2×204234420131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204234420131.

It is not an unprimeable number, because it can be changed into a prime (204234420139) 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 15 ways as a sum of consecutive naturals, for example, 20455280 + ... + 20465261.

It is an arithmetic number, because the mean of its divisors is an integer number (15713488128).

Almost surely, 2^204234420131 is an apocalyptic number.

204234420131 is a deficient number, since it is larger than the sum of its proper divisors (47181389917).

204234420131 is a wasteful number, since it uses less digits than its factorization.

204234420131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40920602.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 204234420131 its reverse (131024432402), we get a palindrome (335258852533).

The spelling of 204234420131 in words is "two hundred four billion, two hundred thirty-four million, four hundred twenty thousand, one hundred thirty-one".