204021000142 has 16 divisors (see below), whose sum is σ = 307412719200. Its totient is φ = 101550224160.

The previous prime is 204021000119. The next prime is 204021000143. The reversal of 204021000142 is 241000120402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204021000143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3538767 + ... + 3595957.

It is an arithmetic number, because the mean of its divisors is an integer number (19213294950).

Almost surely, 2^204021000142 is an apocalyptic number.

204021000142 is a deficient number, since it is larger than the sum of its proper divisors (103391719058).

204021000142 is a wasteful number, since it uses less digits than its factorization.

204021000142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65211.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 204021000142 its reverse (241000120402), we get a palindrome (445021120544).

The spelling of 204021000142 in words is "two hundred four billion, twenty-one million, one hundred forty-two", and thus it is an aban number.