104611021 has 4 divisors (see below), whose sum is σ = 104693344. Its totient is φ = 104528700.

The previous prime is 104611007. The next prime is 104611037. The reversal of 104611021 is 120116401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120116401 = 113 ⋅1062977.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104611021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104610986 and 104611004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104611121) 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, 39225 + ... + 41806.

It is an arithmetic number, because the mean of its divisors is an integer number (26173336).

Almost surely, 2^104611021 is an apocalyptic number.

It is an amenable number.

104611021 is a deficient number, since it is larger than the sum of its proper divisors (82323).

104611021 is an equidigital number, since it uses as much as digits as its factorization.

104611021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82322.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 104611021 is about 10227.9529232393. The cubic root of 104611021 is about 471.1861108498.

Adding to 104611021 its reverse (120116401), we get a palindrome (224727422).

The spelling of 104611021 in words is "one hundred four million, six hundred eleven thousand, twenty-one".