11001112123 has 4 divisors (see below), whose sum is σ = 11049575400. Its totient is φ = 10952648848.

The previous prime is 11001112117. The next prime is 11001112151. The reversal of 11001112123 is 32121110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32121110011 = 103 ⋅311855437.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001112123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001112153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24231298 + ... + 24231751.

It is an arithmetic number, because the mean of its divisors is an integer number (2762393850).

Almost surely, 2^11001112123 is an apocalyptic number.

11001112123 is a deficient number, since it is larger than the sum of its proper divisors (48463277).

11001112123 is an equidigital number, since it uses as much as digits as its factorization.

11001112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48463276.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11001112123 its reverse (32121110011), we get a palindrome (43122222134).

The spelling of 11001112123 in words is "eleven billion, one million, one hundred twelve thousand, one hundred twenty-three".