312303111212 has 24 divisors (see below), whose sum is σ = 554232024192. Its totient is φ = 153963936000.

The previous prime is 312303111157. The next prime is 312303111271. The reversal of 312303111212 is 212111303213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506428 + ... + 1701155.

It is an arithmetic number, because the mean of its divisors is an integer number (23093001008).

Almost surely, 2^312303111212 is an apocalyptic number.

It is an amenable number.

312303111212 is a deficient number, since it is larger than the sum of its proper divisors (241928912980).

312303111212 is a wasteful number, since it uses less digits than its factorization.

312303111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207929 (or 3207927 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312303111212 its reverse (212111303213), we get a palindrome (524414414425).

The spelling of 312303111212 in words is "three hundred twelve billion, three hundred three million, one hundred eleven thousand, two hundred twelve".