1104304021 has 4 divisors (see below), whose sum is σ = 1142383500. Its totient is φ = 1066224544.

The previous prime is 1104304009. The next prime is 1104304039. The reversal of 1104304021 is 1204034011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1204034011 = 571 ⋅2108641.

It can be written as a sum of positive squares in 2 ways, for example, as 614345796 + 489958225 = 24786^2 + 22135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1104304021 - 2²¹ = 1102206869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1104303986 and 1104304004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104304001) 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, 19039696 + ... + 19039753.

It is an arithmetic number, because the mean of its divisors is an integer number (285595875).

Almost surely, 2^1104304021 is an apocalyptic number.

It is an amenable number.

1104304021 is a deficient number, since it is larger than the sum of its proper divisors (38079479).

1104304021 is an equidigital number, since it uses as much as digits as its factorization.

1104304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38079478.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1104304021 is about 33231.0701151799. The cubic root of 1104304021 is about 1033.6247133774.

Adding to 1104304021 its reverse (1204034011), we get a palindrome (2308338032).

The spelling of 1104304021 in words is "one billion, one hundred four million, three hundred four thousand, twenty-one".