20342231142 has 8 divisors (see below), whose sum is σ = 40684462296. Its totient is φ = 6780743712.

The previous prime is 20342231141. The next prime is 20342231177. The reversal of 20342231142 is 24113224302.

It is a happy number.

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

20342231142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342231141) 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, 1695185923 + ... + 1695185934.

It is an arithmetic number, because the mean of its divisors is an integer number (5085557787).

Almost surely, 2^20342231142 is an apocalyptic number.

20342231142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20342231142 is a wasteful number, since it uses less digits than its factorization.

20342231142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390371862.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20342231142 its reverse (24113224302), we get a palindrome (44455455444).

The spelling of 20342231142 in words is "twenty billion, three hundred forty-two million, two hundred thirty-one thousand, one hundred forty-two".