11143000 has 64 divisors (see below), whose sum is σ = 28473120. Its totient is φ = 4048000.

The previous prime is 11142997. The next prime is 11143009. The reversal of 11143000 is 34111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10494 + ... + 11506.

Almost surely, 2^11143000 is an apocalyptic number.

11143000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14236560).

11143000 is an abundant number, since it is smaller than the sum of its proper divisors (17330120).

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

11143000 is a wasteful number, since it uses less digits than its factorization.

11143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11143000 is about 3338.1132395412. The cubic root of 11143000 is about 223.3575875245.

Adding to 11143000 its reverse (34111), we get a palindrome (11177111).

Subtracting from 11143000 its reverse (34111), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1114 and 3000, that added together give a palindrome (4114).

The spelling of 11143000 in words is "eleven million, one hundred forty-three thousand".