20342201204042 has 8 divisors (see below), whose sum is σ = 32308201912356. Its totient is φ = 9572800566592.

The previous prime is 20342201204041. The next prime is 20342201204069. The reversal of 20342201204042 is 24040210224302.

It can be written as a sum of positive squares in 2 ways, for example, as 17134624081201 + 3207577122841 = 4139399^2 + 1790971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20342201204041) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 299150017673 + ... + 299150017740.

Almost surely, 2^{20342201204042} is an apocalyptic number.

20342201204042 is a deficient number, since it is larger than the sum of its proper divisors (11966000708314).

20342201204042 is a wasteful number, since it uses less digits than its factorization.

20342201204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598300035432.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20342201204042 its reverse (24040210224302), we get a palindrome (44382411428344).

The spelling of 20342201204042 in words is "twenty trillion, three hundred forty-two billion, two hundred one million, two hundred four thousand, forty-two".