123104111 has 4 divisors (see below), whose sum is σ = 132573672. Its totient is φ = 113634552.

The previous prime is 123104053. The next prime is 123104117. The reversal of 123104111 is 111401321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123104111 - 2¹⁸ = 122841967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123104117) 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, 4734761 + ... + 4734786.

It is an arithmetic number, because the mean of its divisors is an integer number (33143418).

Almost surely, 2^123104111 is an apocalyptic number.

123104111 is a deficient number, since it is larger than the sum of its proper divisors (9469561).

123104111 is an equidigital number, since it uses as much as digits as its factorization.

123104111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469560.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 123104111 is about 11095.2291999760. The cubic root of 123104111 is about 497.4592591403.

Adding to 123104111 its reverse (111401321), we get a palindrome (234505432).

The spelling of 123104111 in words is "one hundred twenty-three million, one hundred four thousand, one hundred eleven".