11011140 has 120 divisors (see below), whose sum is σ = 39517632. Its totient is φ = 2514240.

The previous prime is 11011123. The next prime is 11011141. The reversal of 11011140 is 4111011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11011141) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10855 + ... + 11825.

Almost surely, 2^11011140 is an apocalyptic number.

11011140 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 11011140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19758816).

11011140 is an abundant number, since it is smaller than the sum of its proper divisors (28506492).

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

11011140 is a wasteful number, since it uses less digits than its factorization.

11011140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 11011140 is about 3318.3037835617. The cubic root of 11011140 is about 222.4730599037.

Adding to 11011140 its reverse (4111011), we get a palindrome (15122151).

The spelling of 11011140 in words is "eleven million, eleven thousand, one hundred forty".