11103442155 has 96 divisors (see below), whose sum is σ = 21328699392. Its totient is φ = 5308934400.

The previous prime is 11103442121. The next prime is 11103442159. The reversal of 11103442155 is 55124430111.

11103442155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11103442155 - 2¹⁷ = 11103311083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11103442159) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 4803450 + ... + 4805760.

It is an arithmetic number, because the mean of its divisors is an integer number (222173952).

Almost surely, 2^11103442155 is an apocalyptic number.

11103442155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11103442155 is a deficient number, since it is larger than the sum of its proper divisors (10225257237).

11103442155 is a wasteful number, since it uses less digits than its factorization.

11103442155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11103442155 its reverse (55124430111), we get a palindrome (66227872266).

The spelling of 11103442155 in words is "eleven billion, one hundred three million, four hundred forty-two thousand, one hundred fifty-five".