123412110111 has 16 divisors (see below), whose sum is σ = 185147097600. Its totient is φ = 81233286264.

The previous prime is 123412110097. The next prime is 123412110163. The reversal of 123412110111 is 111011214321.

123412110111 is a `hidden beast` number, since 1 + 2 + 341 + 211 + 0 + 111 = 666.

It is not a de Polignac number, because 123412110111 - 2¹¹ = 123412108063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123412110191) 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, 28927101 + ... + 28931366.

It is an arithmetic number, because the mean of its divisors is an integer number (11571693600).

Almost surely, 2^123412110111 is an apocalyptic number.

123412110111 is a deficient number, since it is larger than the sum of its proper divisors (61734987489).

123412110111 is an equidigital number, since it uses as much as digits as its factorization.

123412110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57858555 (or 57858549 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 123412110111 its reverse (111011214321), we get a palindrome (234423324432).

The spelling of 123412110111 in words is "one hundred twenty-three billion, four hundred twelve million, one hundred ten thousand, one hundred eleven".