123104016 has 80 divisors (see below), whose sum is σ = 403843200. Its totient is φ = 35171712.

The previous prime is 123103993. The next prime is 123104053. The reversal of 123104016 is 610401321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 123104016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17331 + ... + 23378.

It is an arithmetic number, because the mean of its divisors is an integer number (5048040).

Almost surely, 2^123104016 is an apocalyptic number.

123104016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123104016 is an abundant number, since it is smaller than the sum of its proper divisors (280739184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123104016 is a wasteful number, since it uses less digits than its factorization.

123104016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733 (or 40721 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 123104016 is about 11095.2249188559. The cubic root of 123104016 is about 497.4591311764.

Adding to 123104016 its reverse (610401321), we get a palindrome (733505337).

The spelling of 123104016 in words is "one hundred twenty-three million, one hundred four thousand, sixteen".