11012140 has 12 divisors (see below), whose sum is σ = 23125536. Its totient is φ = 4404848.

The previous prime is 11012129. The next prime is 11012167. The reversal of 11012140 is 4121011.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275284 + ... + 275323.

It is an arithmetic number, because the mean of its divisors is an integer number (1927128).

Almost surely, 2^11012140 is an apocalyptic number.

11012140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11012140 is an abundant number, since it is smaller than the sum of its proper divisors (12113396).

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

11012140 is a wasteful number, since it uses less digits than its factorization.

11012140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550616 (or 550614 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11012140 is about 3318.4544595338. The cubic root of 11012140 is about 222.4797944872.

Adding to 11012140 its reverse (4121011), we get a palindrome (15133151).

The spelling of 11012140 in words is "eleven million, twelve thousand, one hundred forty".