11142043242 has 64 divisors (see below), whose sum is σ = 24641228160. Its totient is φ = 3358417920.

The previous prime is 11142043207. The next prime is 11142043301. The reversal of 11142043242 is 24234024111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1537684 + ... + 1544912.

It is an arithmetic number, because the mean of its divisors is an integer number (385019190).

Almost surely, 2^11142043242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11142043242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12320614080).

11142043242 is an abundant number, since it is smaller than the sum of its proper divisors (13499184918).

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

11142043242 is a wasteful number, since it uses less digits than its factorization.

11142043242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7438 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11142043242 its reverse (24234024111), we get a palindrome (35376067353).

The spelling of 11142043242 in words is "eleven billion, one hundred forty-two million, forty-three thousand, two hundred forty-two".