11103124019 has 4 divisors (see below), whose sum is σ = 11957210496. Its totient is φ = 10249037544.

The previous prime is 11103124009. The next prime is 11103124033. The reversal of 11103124019 is 91042130111.

11103124019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11103124019 - 2⁴ = 11103124003 is a prime.

It is a super-2 number, since 2×11103124019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11103123985 and 11103124003.

It is not an unprimeable number, because it can be changed into a prime (11103124009) 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 3 ways as a sum of consecutive naturals, for example, 427043219 + ... + 427043244.

It is an arithmetic number, because the mean of its divisors is an integer number (2989302624).

Almost surely, 2^11103124019 is an apocalyptic number.

11103124019 is a deficient number, since it is larger than the sum of its proper divisors (854086477).

11103124019 is an equidigital number, since it uses as much as digits as its factorization.

11103124019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854086476.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 11103124019 in words is "eleven billion, one hundred three million, one hundred twenty-four thousand, nineteen".