312203214 has 16 divisors (see below), whose sum is σ = 693785040. Its totient is φ = 104067720.

The previous prime is 312203207. The next prime is 312203267. The reversal of 312203214 is 412302213.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2890717 + ... + 2890824.

It is an arithmetic number, because the mean of its divisors is an integer number (43361565).

Almost surely, 2^312203214 is an apocalyptic number.

312203214 is an abundant number, since it is smaller than the sum of its proper divisors (381581826).

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

312203214 is a wasteful number, since it uses less digits than its factorization.

312203214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781552 (or 5781546 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 312203214 is about 17669.2731599237. The cubic root of 312203214 is about 678.3895091322.

Adding to 312203214 its reverse (412302213), we get a palindrome (724505427).

The spelling of 312203214 in words is "three hundred twelve million, two hundred three thousand, two hundred fourteen".