204131430122 has 8 divisors (see below), whose sum is σ = 306222195972. Its totient is φ = 102057364800.

The previous prime is 204131430023. The next prime is 204131430127. The reversal of 204131430122 is 221034131402.

It can be written as a sum of positive squares in 2 ways, for example, as 193319381761 + 10812048361 = 439681^2 + 103981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204131430127) 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 3 ways as a sum of consecutive naturals, for example, 4144529 + ... + 4193492.

Almost surely, 2^204131430122 is an apocalyptic number.

204131430122 is a deficient number, since it is larger than the sum of its proper divisors (102090765850).

204131430122 is a wasteful number, since it uses less digits than its factorization.

204131430122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350264.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 204131430122 its reverse (221034131402), we get a palindrome (425165561524).

The spelling of 204131430122 in words is "two hundred four billion, one hundred thirty-one million, four hundred thirty thousand, one hundred twenty-two".