123104334021 has 16 divisors (see below), whose sum is σ = 173803552704. Its totient is φ = 77237846784.

The previous prime is 123104334013. The next prime is 123104334029. The reversal of 123104334021 is 120433401321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123104334013) and next prime (123104334029).

It is not a de Polignac number, because 123104334021 - 2³ = 123104334013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123104333982 and 123104334000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123104334029) 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, 1123350 + ... + 1228056.

It is an arithmetic number, because the mean of its divisors is an integer number (10862722044).

Almost surely, 2^123104334021 is an apocalyptic number.

It is an amenable number.

123104334021 is a deficient number, since it is larger than the sum of its proper divisors (50699218683).

123104334021 is a wasteful number, since it uses less digits than its factorization.

123104334021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127780.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123104334021 its reverse (120433401321), we get a palindrome (243537735342).

The spelling of 123104334021 in words is "one hundred twenty-three billion, one hundred four million, three hundred thirty-four thousand, twenty-one".