104180605523 has 4 divisors (see below), whose sum is σ = 104182119360. Its totient is φ = 104179091688.

The previous prime is 104180605499. The next prime is 104180605531. The reversal of 104180605523 is 325506081401.

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 104180605523 - 2²² = 104176411219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104180605553) 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, 648515 + ... + 793052.

It is an arithmetic number, because the mean of its divisors is an integer number (26045529840).

Almost surely, 2^104180605523 is an apocalyptic number.

104180605523 is a deficient number, since it is larger than the sum of its proper divisors (1513837).

104180605523 is an equidigital number, since it uses as much as digits as its factorization.

104180605523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513836.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 104180605523 its reverse (325506081401), we get a palindrome (429686686924).

The spelling of 104180605523 in words is "one hundred four billion, one hundred eighty million, six hundred five thousand, five hundred twenty-three".