312111213232 has 160 divisors (see below), whose sum is σ = 754942930560. Its totient is φ = 121712025600.

The previous prime is 312111213209. The next prime is 312111213247. The reversal of 312111213232 is 232312111213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34259494 + ... + 34268602.

It is an arithmetic number, because the mean of its divisors is an integer number (4718393316).

Almost surely, 2^312111213232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312111213232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377471465280).

312111213232 is an abundant number, since it is smaller than the sum of its proper divisors (442831717328).

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

312111213232 is a wasteful number, since it uses less digits than its factorization.

312111213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471 (or 9465 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 312111213232 its reverse (232312111213), we get a palindrome (544423324445).

The spelling of 312111213232 in words is "three hundred twelve billion, one hundred eleven million, two hundred thirteen thousand, two hundred thirty-two".