1304314521021 has 8 divisors (see below), whose sum is σ = 1932317808960. Its totient is φ = 869543013996.

The previous prime is 1304314521001. The next prime is 1304314521049. The reversal of 1304314521021 is 1201254134031.

1304314521021 is a `hidden beast` number, since 1 + 304 + 3 + 145 + 210 + 2 + 1 = 666.

It is not a de Polignac number, because 1304314521021 - 2⁷ = 1304314520893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 48307945223 = 1304314521021 / (1 + 3 + 0 + 4 + 3 + 1 + 4 + 5 + 2 + 1 + 0 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304314521001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24153972585 + ... + 24153972638.

It is an arithmetic number, because the mean of its divisors is an integer number (241539726120).

Almost surely, 2^{1304314521021} is an apocalyptic number.

It is an amenable number.

1304314521021 is a deficient number, since it is larger than the sum of its proper divisors (628003287939).

1304314521021 is an equidigital number, since it uses as much as digits as its factorization.

1304314521021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48307945232 (or 48307945226 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1304314521021 its reverse (1201254134031), we get a palindrome (2505568655052).

The spelling of 1304314521021 in words is "one trillion, three hundred four billion, three hundred fourteen million, five hundred twenty-one thousand, twenty-one".