11243142 has 24 divisors (see below), whose sum is σ = 25147200. Its totient is φ = 3626640.

The previous prime is 11243131. The next prime is 11243149. The reversal of 11243142 is 24134211.

11243142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9517 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (1047800).

Almost surely, 2^11243142 is an apocalyptic number.

11243142 is an abundant number, since it is smaller than the sum of its proper divisors (13904058).

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

11243142 is a wasteful number, since it uses less digits than its factorization.

11243142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20188 (or 20185 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11243142 is about 3353.0794801197. The cubic root of 11243142 is about 224.0246970006.

Adding to 11243142 its reverse (24134211), we get a palindrome (35377353).

The spelling of 11243142 in words is "eleven million, two hundred forty-three thousand, one hundred forty-two".