11112112100123 has 24 divisors (see below), whose sum is σ = 11776685699520. Its totient is φ = 10482486094080.

The previous prime is 11112112100119. The next prime is 11112112100129. The reversal of 11112112100123 is 32100121121111.

It is not a de Polignac number, because 11112112100123 - 2² = 11112112100119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112112100129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36666965 + ... + 36968777.

It is an arithmetic number, because the mean of its divisors is an integer number (490695237480).

Almost surely, 2^{11112112100123} is an apocalyptic number.

11112112100123 is a deficient number, since it is larger than the sum of its proper divisors (664573599397).

11112112100123 is an equidigital number, since it uses as much as digits as its factorization.

11112112100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302819 (or 302796 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11112112100123 its reverse (32100121121111), we get a palindrome (43212233221234).

The spelling of 11112112100123 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, one hundred thousand, one hundred twenty-three".