204120120002 has 4 divisors (see below), whose sum is σ = 306180180006. Its totient is φ = 102060060000.

The previous prime is 204120119989. The next prime is 204120120089. The reversal of 204120120002 is 200021021402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147386120281 + 56733999721 = 383909^2 + 238189^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51030029999 + ... + 51030030002.

Almost surely, 2^204120120002 is an apocalyptic number.

204120120002 is a deficient number, since it is larger than the sum of its proper divisors (102060060004).

204120120002 is a wasteful number, since it uses less digits than its factorization.

204120120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102060060003.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 204120120002 its reverse (200021021402), we get a palindrome (404141141404).

The spelling of 204120120002 in words is "two hundred four billion, one hundred twenty million, one hundred twenty thousand, two".