It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
Almost surely, 211142404342 is an apocalyptic number.
11142404342 is a wasteful number, since it uses less digits than its factorization.
11142404342 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15519030.
Adding to 11142404342 its reverse (24340424111), we get a palindrome (35482828453).
The spelling of 11142404342 in words is "eleven billion, one hundred forty-two million, four hundred four thousand, three hundred forty-two".