11201142 has 8 divisors (see below), whose sum is σ = 22402296. Its totient is φ = 3733712.

The previous prime is 11201131. The next prime is 11201143. The reversal of 11201142 is 24110211.

It is a happy number.

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

11201142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933423 + ... + 933434.

It is an arithmetic number, because the mean of its divisors is an integer number (2800287).

Almost surely, 2^11201142 is an apocalyptic number.

11201142 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.

11201142 is a wasteful number, since it uses less digits than its factorization.

11201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866862.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11201142 is about 3346.8107206712. The cubic root of 11201142 is about 223.7453925791.

Adding to 11201142 its reverse (24110211), we get a palindrome (35311353).

The spelling of 11201142 in words is "eleven million, two hundred one thousand, one hundred forty-two".