312030221304 has 64 divisors (see below), whose sum is σ = 786715776000. Its totient is φ = 103126671360.

The previous prime is 312030221281. The next prime is 312030221339. The reversal of 312030221304 is 403122030213.

312030221304 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2504569 + ... + 2626199.

It is an arithmetic number, because the mean of its divisors is an integer number (12292434000).

Almost surely, 2^312030221304 is an apocalyptic number.

It is an amenable number.

312030221304 is an abundant number, since it is smaller than the sum of its proper divisors (474685554696).

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

312030221304 is a wasteful number, since it uses less digits than its factorization.

312030221304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122548 (or 122544 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312030221304 its reverse (403122030213), we get a palindrome (715152251517).

The spelling of 312030221304 in words is "three hundred twelve billion, thirty million, two hundred twenty-one thousand, three hundred four".