42143440142 has 8 divisors (see below), whose sum is σ = 63217169832. Its totient is φ = 21071050200.

The previous prime is 42143440051. The next prime is 42143440177. The reversal of 42143440142 is 24104434124.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252209 + ... + 384572.

It is an arithmetic number, because the mean of its divisors is an integer number (7902146229).

Almost surely, 2^42143440142 is an apocalyptic number.

42143440142 is a deficient number, since it is larger than the sum of its proper divisors (21073729690).

42143440142 is a wasteful number, since it uses less digits than its factorization.

42143440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669874.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 42143440142 its reverse (24104434124), we get a palindrome (66247874266).

The spelling of 42143440142 in words is "forty-two billion, one hundred forty-three million, four hundred forty thousand, one hundred forty-two".