123304111 has 16 divisors (see below), whose sum is σ = 149615424. Its totient is φ = 99201024.

The previous prime is 123304109. The next prime is 123304147. The reversal of 123304111 is 111403321.

It is a cyclic number.

It is not a de Polignac number, because 123304111 - 2¹ = 123304109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123304211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50331 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (9350964).

Almost surely, 2^123304111 is an apocalyptic number.

123304111 is a deficient number, since it is larger than the sum of its proper divisors (26311313).

123304111 is a wasteful number, since it uses less digits than its factorization.

123304111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 123304111 is about 11104.2384250339. The cubic root of 123304111 is about 497.7285109686.

Adding to 123304111 its reverse (111403321), we get a palindrome (234707432).

The spelling of 123304111 in words is "one hundred twenty-three million, three hundred four thousand, one hundred eleven".