104044030021 has 2 divisors, whose sum is σ = 104044030022. Its totient is φ = 104044030020.

The previous prime is 104044030009. The next prime is 104044030043. The reversal of 104044030021 is 120030440401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103787709921 + 256320100 = 322161^2 + 16010^2 .

It is a cyclic number.

It is not a de Polignac number, because 104044030021 - 2⁷ = 104044029893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104044030061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52022015010 + 52022015011.

It is an arithmetic number, because the mean of its divisors is an integer number (52022015011).

Almost surely, 2^104044030021 is an apocalyptic number.

It is an amenable number.

104044030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

104044030021 is an equidigital number, since it uses as much as digits as its factorization.

104044030021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 104044030021 its reverse (120030440401), we get a palindrome (224074470422).

The spelling of 104044030021 in words is "one hundred four billion, forty-four million, thirty thousand, twenty-one".