11118870 has 160 divisors (see below), whose sum is σ = 35754048. Its totient is φ = 2426112.

The previous prime is 11118853. The next prime is 11118871. The reversal of 11118870 is 7881111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118871) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 209764 + ... + 209816.

Almost surely, 2^11118870 is an apocalyptic number.

11118870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11118870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17877024).

11118870 is an abundant number, since it is smaller than the sum of its proper divisors (24635178).

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

11118870 is a wasteful number, since it uses less digits than its factorization.

11118870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 27.

The square root of 11118870 is about 3334.4969635614. The cubic root of 11118870 is about 223.1962451675.

Adding to 11118870 its reverse (7881111), we get a palindrome (18999981).

It can be divided in two parts, 111 and 18870, that added together give a palindrome (18981).

The spelling of 11118870 in words is "eleven million, one hundred eighteen thousand, eight hundred seventy".