11123420003 has 8 divisors (see below), whose sum is σ = 11508868800. Its totient is φ = 10738096768.

The previous prime is 11123419981. The next prime is 11123420023. The reversal of 11123420003 is 30002432111.

11123420003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11123420003 - 2¹⁰ = 11123418979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123420023) 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 7 ways as a sum of consecutive naturals, for example, 171083 + ... + 226971.

It is an arithmetic number, because the mean of its divisors is an integer number (1438608600).

Almost surely, 2^11123420003 is an apocalyptic number.

11123420003 is a deficient number, since it is larger than the sum of its proper divisors (385448797).

11123420003 is an equidigital number, since it uses as much as digits as its factorization.

11123420003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62781.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11123420003 its reverse (30002432111), we get a palindrome (41125852114).

The spelling of 11123420003 in words is "eleven billion, one hundred twenty-three million, four hundred twenty thousand, three".