11121004548 has 36 divisors (see below), whose sum is σ = 28123084080. Its totient is φ = 3705464496.

The previous prime is 11121004547. The next prime is 11121004579. The reversal of 11121004548 is 84540012111.

It is a happy number.

11121004548 is a `hidden beast` number, since 1 + 1 + 12 + 100 + 4 + 548 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (11121004547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25711 + ... + 151337.

It is an arithmetic number, because the mean of its divisors is an integer number (781196780).

Almost surely, 2^11121004548 is an apocalyptic number.

11121004548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11121004548 is an abundant number, since it is smaller than the sum of its proper divisors (17002079532).

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

11121004548 is a wasteful number, since it uses less digits than its factorization.

11121004548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128096 (or 128091 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

Adding to 11121004548 its reverse (84540012111), we get a palindrome (95661016659).

The spelling of 11121004548 in words is "eleven billion, one hundred twenty-one million, four thousand, five hundred forty-eight".