312214213 has 12 divisors (see below), whose sum is σ = 343567840. Its totient is φ = 282912696.

The previous prime is 312214183. The next prime is 312214219. The reversal of 312214213 is 312412213.

It is a happy number.

It is not a de Polignac number, because 312214213 - 2⁹ = 312213701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312214219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5481 + ... + 25582.

Almost surely, 2^312214213 is an apocalyptic number.

It is an amenable number.

312214213 is a deficient number, since it is larger than the sum of its proper divisors (31353627).

312214213 is a wasteful number, since it uses less digits than its factorization.

312214213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31128 (or 31105 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 312214213 is about 17669.5844037148. The cubic root of 312214213 is about 678.3974756513.

Adding to 312214213 its reverse (312412213), we get a palindrome (624626426).

The spelling of 312214213 in words is "three hundred twelve million, two hundred fourteen thousand, two hundred thirteen".