11100042540 has 36 divisors (see below), whose sum is σ = 33670129584. Its totient is φ = 2960011296.

The previous prime is 11100042533. The next prime is 11100042557. The reversal of 11100042540 is 4524000111.

11100042540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30833272 + ... + 30833631.

Almost surely, 2^11100042540 is an apocalyptic number.

11100042540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100042540 is an abundant number, since it is smaller than the sum of its proper divisors (22570087044).

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

11100042540 is a wasteful number, since it uses less digits than its factorization.

11100042540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61666918 (or 61666913 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 11100042540 its reverse (4524000111), we get a palindrome (15624042651).

The spelling of 11100042540 in words is "eleven billion, one hundred million, forty-two thousand, five hundred forty".