11100012123 has 16 divisors (see below), whose sum is σ = 15447057696. Its totient is φ = 7083298560.

The previous prime is 11100012103. The next prime is 11100012163. The reversal of 11100012123 is 32121000111.

It is not a de Polignac number, because 11100012123 - 2¹² = 11100008027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100012099 and 11100012108.

It is not an unprimeable number, because it can be changed into a prime (11100012103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844840 + ... + 857877.

It is an arithmetic number, because the mean of its divisors is an integer number (965441106).

Almost surely, 2^11100012123 is an apocalyptic number.

11100012123 is a deficient number, since it is larger than the sum of its proper divisors (4347045573).

11100012123 is a wasteful number, since it uses less digits than its factorization.

11100012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702814.

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

Adding to 11100012123 its reverse (32121000111), we get a palindrome (43221012234).

The spelling of 11100012123 in words is "eleven billion, one hundred million, twelve thousand, one hundred twenty-three".