20104340142 has 48 divisors (see below), whose sum is σ = 41388399360. Its totient is φ = 6506796240.

The previous prime is 20104340129. The next prime is 20104340159. The reversal of 20104340142 is 24104340102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35208717 + ... + 35209287.

It is an arithmetic number, because the mean of its divisors is an integer number (862258320).

Almost surely, 2^20104340142 is an apocalyptic number.

20104340142 is an abundant number, since it is smaller than the sum of its proper divisors (21284059218).

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

20104340142 is an equidigital number, since it uses as much as digits as its factorization.

20104340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20104340142 its reverse (24104340102), we get a palindrome (44208680244).

The spelling of 20104340142 in words is "twenty billion, one hundred four million, three hundred forty thousand, one hundred forty-two".