304212340421 has 16 divisors (see below), whose sum is σ = 344750587776. Its totient is φ = 266011200000.

The previous prime is 304212340391. The next prime is 304212340423. The reversal of 304212340421 is 124043212403.

It is a cyclic number.

It is not a de Polignac number, because 304212340421 - 2³⁸ = 29334433477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304212340423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4718180 + ... + 4782221.

It is an arithmetic number, because the mean of its divisors is an integer number (21546911736).

Almost surely, 2^304212340421 is an apocalyptic number.

It is an amenable number.

304212340421 is a deficient number, since it is larger than the sum of its proper divisors (40538247355).

304212340421 is a wasteful number, since it uses less digits than its factorization.

304212340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500524.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 304212340421 its reverse (124043212403), we get a palindrome (428255552824).

The spelling of 304212340421 in words is "three hundred four billion, two hundred twelve million, three hundred forty thousand, four hundred twenty-one".