204101213442 has 32 divisors (see below), whose sum is σ = 466539841152. Its totient is φ = 58311784704.

The previous prime is 204101213417. The next prime is 204101213443. The reversal of 204101213442 is 244312101402.

It is not an unprimeable number, because it can be changed into a prime (204101213443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843418 + ... + 1058090.

It is an arithmetic number, because the mean of its divisors is an integer number (14579370036).

Almost surely, 2^204101213442 is an apocalyptic number.

204101213442 is an abundant number, since it is smaller than the sum of its proper divisors (262438627710).

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

204101213442 is a wasteful number, since it uses less digits than its factorization.

204101213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237322.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 204101213442 its reverse (244312101402), we get a palindrome (448413314844).

The spelling of 204101213442 in words is "two hundred four billion, one hundred one million, two hundred thirteen thousand, four hundred forty-two".