20342434142 has 8 divisors (see below), whose sum is σ = 30564594000. Its totient is φ = 10154236144.

The previous prime is 20342434127. The next prime is 20342434153. The reversal of 20342434142 is 24143424302.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8488967 + ... + 8491362.

It is an arithmetic number, because the mean of its divisors is an integer number (3820574250).

Almost surely, 2^20342434142 is an apocalyptic number.

20342434142 is a deficient number, since it is larger than the sum of its proper divisors (10222159858).

20342434142 is a wasteful number, since it uses less digits than its factorization.

20342434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16980930.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20342434142 its reverse (24143424302), we get a palindrome (44485858444).

The spelling of 20342434142 in words is "twenty billion, three hundred forty-two million, four hundred thirty-four thousand, one hundred forty-two".