312113214 has 48 divisors (see below), whose sum is σ = 780849888. Its totient is φ = 88252416.

The previous prime is 312113189. The next prime is 312113267. The reversal of 312113214 is 412311213.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547 + ... + 24990.

It is an arithmetic number, because the mean of its divisors is an integer number (16267706).

Almost surely, 2^312113214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312113214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390424944).

312113214 is an abundant number, since it is smaller than the sum of its proper divisors (468736674).

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

312113214 is a wasteful number, since it uses less digits than its factorization.

312113214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25649 (or 25646 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 312113214 is about 17666.7261822897. The cubic root of 312113214 is about 678.3243155650.

Adding to 312113214 its reverse (412311213), we get a palindrome (724424427).

It can be divided in two parts, 312 and 113214, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 312113214 in words is "three hundred twelve million, one hundred thirteen thousand, two hundred fourteen".