11144542120 has 32 divisors (see below), whose sum is σ = 25079731200. Its totient is φ = 4457014848.

The previous prime is 11144542091. The next prime is 11144542121. The reversal of 11144542120 is 2124544111.

It is not an unprimeable number, because it can be changed into a prime (11144542121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232801 + ... + 276559.

It is an arithmetic number, because the mean of its divisors is an integer number (783741600).

Almost surely, 2^11144542120 is an apocalyptic number.

11144542120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11144542120 is an abundant number, since it is smaller than the sum of its proper divisors (13935189080).

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

11144542120 is a wasteful number, since it uses less digits than its factorization.

11144542120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50137 (or 50133 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The spelling of 11144542120 in words is "eleven billion, one hundred forty-four million, five hundred forty-two thousand, one hundred twenty".