11143111242 has 8 divisors (see below), whose sum is σ = 22286222496. Its totient is φ = 3714370412.

The previous prime is 11143111237. The next prime is 11143111283. The reversal of 11143111242 is 24211134111.

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

11143111242 is an admirable 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, 928592598 + ... + 928592609.

It is an arithmetic number, because the mean of its divisors is an integer number (2785777812).

Almost surely, 2^11143111242 is an apocalyptic number.

11143111242 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.

11143111242 is a wasteful number, since it uses less digits than its factorization.

11143111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857185212.

The product of its digits is 192, while the sum is 21.

Adding to 11143111242 its reverse (24211134111), we get a palindrome (35354245353).

The spelling of 11143111242 in words is "eleven billion, one hundred forty-three million, one hundred eleven thousand, two hundred forty-two".