204002310042 has 24 divisors (see below), whose sum is σ = 461222614944. Its totient is φ = 65044214664.

The previous prime is 204002310041. The next prime is 204002310077. The reversal of 204002310042 is 240013200402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 204002309997 and 204002310024.

It is not an unprimeable number, because it can be changed into a prime (204002310041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246379188 + ... + 246380015.

It is an arithmetic number, because the mean of its divisors is an integer number (19217608956).

Almost surely, 2^204002310042 is an apocalyptic number.

204002310042 is an abundant number, since it is smaller than the sum of its proper divisors (257220304902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204002310042 is a wasteful number, since it uses less digits than its factorization.

204002310042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492759234 (or 492759231 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 204002310042 its reverse (240013200402), we get a palindrome (444015510444).

The spelling of 204002310042 in words is "two hundred four billion, two million, three hundred ten thousand, forty-two".