123104511 has 6 divisors (see below), whose sum is σ = 177817640. Its totient is φ = 82069668.

The previous prime is 123104489. The next prime is 123104537. The reversal of 123104511 is 115401321.

It is not a de Polignac number, because 123104511 - 2⁵ = 123104479 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 (123104561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6839131 + ... + 6839148.

Almost surely, 2^123104511 is an apocalyptic number.

123104511 is a deficient number, since it is larger than the sum of its proper divisors (54713129).

123104511 is a wasteful number, since it uses less digits than its factorization.

123104511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13678285 (or 13678282 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 123104511 is about 11095.2472257269. The cubic root of 123104511 is about 497.4597979349.

Adding to 123104511 its reverse (115401321), we get a palindrome (238505832).

The spelling of 123104511 in words is "one hundred twenty-three million, one hundred four thousand, five hundred eleven".