104421020309 has 2 divisors, whose sum is σ = 104421020310. Its totient is φ = 104421020308.

The previous prime is 104421020281. The next prime is 104421020317. The reversal of 104421020309 is 903020124401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101237239684 + 3183780625 = 318178^2 + 56425^2 .

It is an emirp because it is prime and its reverse (903020124401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104421020309 - 2²⁴ = 104404243093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104421020329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52210510154 + 52210510155.

It is an arithmetic number, because the mean of its divisors is an integer number (52210510155).

Almost surely, 2^104421020309 is an apocalyptic number.

It is an amenable number.

104421020309 is a deficient number, since it is larger than the sum of its proper divisors (1).

104421020309 is an equidigital number, since it uses as much as digits as its factorization.

104421020309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 104421020309 in words is "one hundred four billion, four hundred twenty-one million, twenty thousand, three hundred nine".