312445323544212 has 96 divisors (see below), whose sum is σ = 836338478976000. Its totient is φ = 100768972147200.

The previous prime is 312445323544129. The next prime is 312445323544217. The reversal of 312445323544212 is 212445323544213.

312445323544212 is a `hidden beast` number, since 3 + 1 + 2 + 44 + 53 + 2 + 3 + 544 + 2 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312445323544217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7827664 + ... + 26194712.

It is an arithmetic number, because the mean of its divisors is an integer number (8711859156000).

Almost surely, 2^{312445323544212} 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 312445323544212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418169239488000).

312445323544212 is an abundant number, since it is smaller than the sum of its proper divisors (523893155431788).

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

312445323544212 is a wasteful number, since it uses less digits than its factorization.

312445323544212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18372174 (or 18372166 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

Subtracting from 312445323544212 its reverse (212445323544213), we obtain a palindrome (99999999999999).

The spelling of 312445323544212 in words is "three hundred twelve trillion, four hundred forty-five billion, three hundred twenty-three million, five hundred forty-four thousand, two hundred twelve".