304344121402421 has 32 divisors (see below), whose sum is σ = 339319830620160. Its totient is φ = 271275466162176.

The previous prime is 304344121402417. The next prime is 304344121402441. The reversal of 304344121402421 is 124204121443403.

It is a cyclic number.

It is not a de Polignac number, because 304344121402421 - 2² = 304344121402417 is a prime.

It is a super-2 number, since 2×304344121402421² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304344121402441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21519056876 + ... + 21519071018.

It is an arithmetic number, because the mean of its divisors is an integer number (10603744706880).

Almost surely, 2^{304344121402421} is an apocalyptic number.

It is an amenable number.

304344121402421 is a deficient number, since it is larger than the sum of its proper divisors (34975709217739).

304344121402421 is a wasteful number, since it uses less digits than its factorization.

304344121402421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31613.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 304344121402421 its reverse (124204121443403), we get a palindrome (428548242845824).

The spelling of 304344121402421 in words is "three hundred four trillion, three hundred forty-four billion, one hundred twenty-one million, four hundred two thousand, four hundred twenty-one".