104100123535 has 4 divisors (see below), whose sum is σ = 124920148248. Its totient is φ = 83280098824.

The previous prime is 104100123481. The next prime is 104100123563. The reversal of 104100123535 is 535321001401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535321001401 = 37 ⋅14468135173.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104100123535 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10410012349 + ... + 10410012358.

It is an arithmetic number, because the mean of its divisors is an integer number (31230037062).

Almost surely, 2^104100123535 is an apocalyptic number.

104100123535 is a deficient number, since it is larger than the sum of its proper divisors (20820024713).

104100123535 is an equidigital number, since it uses as much as digits as its factorization.

104100123535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820024712.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 104100123535 its reverse (535321001401), we get a palindrome (639421124936).

The spelling of 104100123535 in words is "one hundred four billion, one hundred million, one hundred twenty-three thousand, five hundred thirty-five".