204401110042 has 4 divisors (see below), whose sum is σ = 306601665066. Its totient is φ = 102200555020.

The previous prime is 204401110033. The next prime is 204401110051. The reversal of 204401110042 is 240011104402.

204401110042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240011104402 = 2 ⋅120005552201.

It is an interprime number because it is at equal distance from previous prime (204401110033) and next prime (204401110051).

It can be written as a sum of positive squares in only one way, i.e., 196487406361 + 7913703681 = 443269^2 + 88959^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 51100277509 + ... + 51100277512.

Almost surely, 2^204401110042 is an apocalyptic number.

204401110042 is a deficient number, since it is larger than the sum of its proper divisors (102200555024).

204401110042 is a wasteful number, since it uses less digits than its factorization.

204401110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102200555023.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 204401110042 its reverse (240011104402), we get a palindrome (444412214444).

The spelling of 204401110042 in words is "two hundred four billion, four hundred one million, one hundred ten thousand, forty-two".