312230220 has 24 divisors (see below), whose sum is σ = 874244784. Its totient is φ = 83261376.

The previous prime is 312230197. The next prime is 312230257. The reversal of 312230220 is 22032213.

312230220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 312230220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2601859 + ... + 2601978.

It is an arithmetic number, because the mean of its divisors is an integer number (36426866).

Almost surely, 2^312230220 is an apocalyptic number.

312230220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312230220 is an abundant number, since it is smaller than the sum of its proper divisors (562014564).

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

312230220 is a wasteful number, since it uses less digits than its factorization.

312230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203849 (or 5203847 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 312230220 is about 17670.0373514036. The cubic root of 312230220 is about 678.4090691047.

Adding to 312230220 its reverse (22032213), we get a palindrome (334262433).

The spelling of 312230220 in words is "three hundred twelve million, two hundred thirty thousand, two hundred twenty".