104211532505 has 4 divisors (see below), whose sum is σ = 125053839012. Its totient is φ = 83369226000.

The previous prime is 104211532501. The next prime is 104211532541. The reversal of 104211532505 is 505235112401.

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 33353351641 + 70858180864 = 182629^2 + 266192^2 .

It is not a de Polignac number, because 104211532505 - 2² = 104211532501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104211532501) 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, 10421153246 + ... + 10421153255.

It is an arithmetic number, because the mean of its divisors is an integer number (31263459753).

Almost surely, 2^104211532505 is an apocalyptic number.

It is an amenable number.

104211532505 is a deficient number, since it is larger than the sum of its proper divisors (20842306507).

104211532505 is an equidigital number, since it uses as much as digits as its factorization.

104211532505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20842306506.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 104211532505 its reverse (505235112401), we get a palindrome (609446644906).

The spelling of 104211532505 in words is "one hundred four billion, two hundred eleven million, five hundred thirty-two thousand, five hundred five".