312230321120 has 48 divisors (see below), whose sum is σ = 742342563648. Its totient is φ = 124096627200.

The previous prime is 312230321089. The next prime is 312230321129. The reversal of 312230321120 is 21123032213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 312230321092 and 312230321101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312230321129) 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, 6189656 + ... + 6239895.

It is an arithmetic number, because the mean of its divisors is an integer number (15465470076).

Almost surely, 2^312230321120 is an apocalyptic number.

It is an amenable number.

312230321120 is an abundant number, since it is smaller than the sum of its proper divisors (430112242528).

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

312230321120 is a wasteful number, since it uses less digits than its factorization.

312230321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12429723 (or 12429715 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312230321120 its reverse (21123032213), we get a palindrome (333353353333).

The spelling of 312230321120 in words is "three hundred twelve billion, two hundred thirty million, three hundred twenty-one thousand, one hundred twenty".