15104435204123 has 4 divisors (see below), whose sum is σ = 15104719383528. Its totient is φ = 15104151024720.

The previous prime is 15104435204077. The next prime is 15104435204129. The reversal of 15104435204123 is 32140253440151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15104435204123 - 2¹⁸ = 15104434941979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15104435204129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142009961 + ... + 142116282.

It is an arithmetic number, because the mean of its divisors is an integer number (3776179845882).

Almost surely, 2^{15104435204123} is an apocalyptic number.

15104435204123 is a deficient number, since it is larger than the sum of its proper divisors (284179405).

15104435204123 is an equidigital number, since it uses as much as digits as its factorization.

15104435204123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284179404.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 15104435204123 its reverse (32140253440151), we get a palindrome (47244688644274).

The spelling of 15104435204123 in words is "fifteen trillion, one hundred four billion, four hundred thirty-five million, two hundred four thousand, one hundred twenty-three".