312233021231252 has 96 divisors (see below), whose sum is σ = 627883056353280. Its totient is φ = 134362481598720.

The previous prime is 312233021231251. The next prime is 312233021231293. The reversal of 312233021231252 is 252132120332213.

It is a super-2 number, since 2×312233021231252² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312233021231251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9659762363 + ... + 9659794685.

It is an arithmetic number, because the mean of its divisors is an integer number (6540448503680).

Almost surely, 2^{312233021231252} is an apocalyptic number.

It is an amenable number.

312233021231252 is an abundant number, since it is smaller than the sum of its proper divisors (315650035122028).

312233021231252 is a wasteful number, since it uses less digits than its factorization.

312233021231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39901 (or 39899 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 312233021231252 its reverse (252132120332213), we get a palindrome (564365141563465).

The spelling of 312233021231252 in words is "three hundred twelve trillion, two hundred thirty-three billion, twenty-one million, two hundred thirty-one thousand, two hundred fifty-two".