304312321212 has 24 divisors (see below), whose sum is σ = 710073778176. Its totient is φ = 101435769648.

The previous prime is 304312321199. The next prime is 304312321223. The reversal of 304312321212 is 212123213403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712743 + ... + 1056705.

It is an arithmetic number, because the mean of its divisors is an integer number (29586407424).

Almost surely, 2^304312321212 is an apocalyptic number.

It is an amenable number.

304312321212 is an abundant number, since it is smaller than the sum of its proper divisors (405761456964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304312321212 is a wasteful number, since it uses less digits than its factorization.

304312321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417697 (or 417695 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 304312321212 its reverse (212123213403), we get a palindrome (516435534615).

The spelling of 304312321212 in words is "three hundred four billion, three hundred twelve million, three hundred twenty-one thousand, two hundred twelve".