104521100321 has 32 divisors (see below), whose sum is σ = 116584430976. Its totient is φ = 92905344000.

The previous prime is 104521100303. The next prime is 104521100339. The reversal of 104521100321 is 123001125401.

It is an interprime number because it is at equal distance from previous prime (104521100303) and next prime (104521100339).

It is a cyclic number.

It is not a de Polignac number, because 104521100321 - 2²⁶ = 104453991457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104521100293 and 104521100302.

It is not an unprimeable number, because it can be changed into a prime (104521100921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127309091 + ... + 127309911.

It is an arithmetic number, because the mean of its divisors is an integer number (3643263468).

Almost surely, 2^104521100321 is an apocalyptic number.

104521100321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104521100321 is a deficient number, since it is larger than the sum of its proper divisors (12063330655).

104521100321 is a wasteful number, since it uses less digits than its factorization.

104521100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 104521100321 its reverse (123001125401), we get a palindrome (227522225722).

The spelling of 104521100321 in words is "one hundred four billion, five hundred twenty-one million, one hundred thousand, three hundred twenty-one".