104123234021 has 2 divisors, whose sum is σ = 104123234022. Its totient is φ = 104123234020.

The previous prime is 104123234011. The next prime is 104123234027. The reversal of 104123234021 is 120432321401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62625062500 + 41498171521 = 250250^2 + 203711^2 .

It is a cyclic number.

It is not a de Polignac number, because 104123234021 - 2³⁰ = 103049492197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104123234027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52061617010 + 52061617011.

It is an arithmetic number, because the mean of its divisors is an integer number (52061617011).

Almost surely, 2^104123234021 is an apocalyptic number.

It is an amenable number.

104123234021 is a deficient number, since it is larger than the sum of its proper divisors (1).

104123234021 is an equidigital number, since it uses as much as digits as its factorization.

104123234021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 104123234021 its reverse (120432321401), we get a palindrome (224555555422).

The spelling of 104123234021 in words is "one hundred four billion, one hundred twenty-three million, two hundred thirty-four thousand, twenty-one".