42104000123 has 16 divisors (see below), whose sum is σ = 44390177280. Its totient is φ = 39856865664.

The previous prime is 42104000069. The next prime is 42104000131. The reversal of 42104000123 is 32100040124.

It is a cyclic number.

It is not a de Polignac number, because 42104000123 - 2²⁰ = 42102951547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42104000173) 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 15 ways as a sum of consecutive naturals, for example, 1763258 + ... + 1786976.

It is an arithmetic number, because the mean of its divisors is an integer number (2774386080).

Almost surely, 2^42104000123 is an apocalyptic number.

42104000123 is a deficient number, since it is larger than the sum of its proper divisors (2286177157).

42104000123 is a wasteful number, since it uses less digits than its factorization.

42104000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24538.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42104000123 its reverse (32100040124), we get a palindrome (74204040247).

The spelling of 42104000123 in words is "forty-two billion, one hundred four million, one hundred twenty-three", and thus it is an aban number.