11143020 has 96 divisors (see below), whose sum is σ = 36546048. Its totient is φ = 2483712.

The previous prime is 11143019. The next prime is 11143037. The reversal of 11143020 is 2034111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11142987 and 11143005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17752 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (380688).

Almost surely, 2^11143020 is an apocalyptic number.

11143020 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 11143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18273024).

11143020 is an abundant number, since it is smaller than the sum of its proper divisors (25403028).

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

11143020 is a wasteful number, since it uses less digits than its factorization.

11143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11143020 is about 3338.1162352441. The cubic root of 11143020 is about 223.3577211555.

Adding to 11143020 its reverse (2034111), we get a palindrome (13177131).

The spelling of 11143020 in words is "eleven million, one hundred forty-three thousand, twenty".