104300021 has 4 divisors (see below), whose sum is σ = 119200032. Its totient is φ = 89400012.

The previous prime is 104299997. The next prime is 104300033. The reversal of 104300021 is 120003401.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 104300021 - 2⁶ = 104299957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104299975 and 104300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104300071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7449995 + ... + 7450008.

It is an arithmetic number, because the mean of its divisors is an integer number (29800008).

Almost surely, 2^104300021 is an apocalyptic number.

It is an amenable number.

104300021 is a deficient number, since it is larger than the sum of its proper divisors (14900011).

104300021 is an equidigital number, since it uses as much as digits as its factorization.

104300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900010.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 104300021 is about 10212.7381734773. The cubic root of 104300021 is about 470.7187147909.

Adding to 104300021 its reverse (120003401), we get a palindrome (224303422).

The spelling of 104300021 in words is "one hundred four million, three hundred thousand, twenty-one".