11142142242 has 96 divisors (see below), whose sum is σ = 28309621824. Its totient is φ = 2890944000.

The previous prime is 11142142217. The next prime is 11142142273. The reversal of 11142142242 is 24224124111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5823478 + ... + 5825390.

It is an arithmetic number, because the mean of its divisors is an integer number (294891894).

Almost surely, 2^11142142242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11142142242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14154810912).

11142142242 is an abundant number, since it is smaller than the sum of its proper divisors (17167479582).

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

11142142242 is a wasteful number, since it uses less digits than its factorization.

11142142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744 (or 3737 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

Adding to 11142142242 its reverse (24224124111), we get a palindrome (35366266353).

The spelling of 11142142242 in words is "eleven billion, one hundred forty-two million, one hundred forty-two thousand, two hundred forty-two".