11143243242 has 12 divisors (see below), whose sum is σ = 24143693730. Its totient is φ = 3714414408.

The previous prime is 11143243219. The next prime is 11143243247. The reversal of 11143243242 is 24234234111.

11143243242 is a `hidden beast` number, since 1 + 1 + 14 + 324 + 324 + 2 = 666.

11143243242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7612388001 + 3530855241 = 87249^2 + 59421^2 .

It is not an unprimeable number, because it can be changed into a prime (11143243247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309534517 + ... + 309534552.

Almost surely, 2^11143243242 is an apocalyptic number.

11143243242 is an abundant number, since it is smaller than the sum of its proper divisors (13000450488).

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

11143243242 is a wasteful number, since it uses less digits than its factorization.

11143243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619069077 (or 619069074 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 11143243242 its reverse (24234234111), we get a palindrome (35377477353).

The spelling of 11143243242 in words is "eleven billion, one hundred forty-three million, two hundred forty-three thousand, two hundred forty-two".