104801144601521 has 4 divisors (see below), whose sum is σ = 104811678448500. Its totient is φ = 104790610754544.

The previous prime is 104801144601497. The next prime is 104801144601523. The reversal of 104801144601521 is 125106441108401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55696592890225 + 49104551711296 = 7463015^2 + 7007464^2 .

It is a cyclic number.

It is not a de Polignac number, because 104801144601521 - 2²² = 104801140407217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104801144601523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5266908566 + ... + 5266928463.

It is an arithmetic number, because the mean of its divisors is an integer number (26202919612125).

Almost surely, 2^{104801144601521} is an apocalyptic number.

It is an amenable number.

104801144601521 is a deficient number, since it is larger than the sum of its proper divisors (10533846979).

104801144601521 is an equidigital number, since it uses as much as digits as its factorization.

104801144601521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533846978.

The product of its (nonzero) digits is 30720, while the sum is 38.

Adding to 104801144601521 its reverse (125106441108401), we get a palindrome (229907585709922).

The spelling of 104801144601521 in words is "one hundred four trillion, eight hundred one billion, one hundred forty-four million, six hundred one thousand, five hundred twenty-one".