304220013121 has 8 divisors (see below), whose sum is σ = 305038679400. Its totient is φ = 303401535360.

The previous prime is 304220013067. The next prime is 304220013127. The reversal of 304220013121 is 121310022403.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 189003215025 + 115216798096 = 434745^2 + 339436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304220013121 - 2¹⁵ = 304219980353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304220013127) 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, 3552435 + ... + 3637063.

It is an arithmetic number, because the mean of its divisors is an integer number (38129834925).

Almost surely, 2^304220013121 is an apocalyptic number.

It is an amenable number.

304220013121 is a deficient number, since it is larger than the sum of its proper divisors (818666279).

304220013121 is an equidigital number, since it uses as much as digits as its factorization.

304220013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94259.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 304220013121 its reverse (121310022403), we get a palindrome (425530035524).

The spelling of 304220013121 in words is "three hundred four billion, two hundred twenty million, thirteen thousand, one hundred twenty-one".