312223103112 has 32 divisors (see below), whose sum is σ = 780632107200. Its totient is φ = 104064454464.

The previous prime is 312223103047. The next prime is 312223103123. The reversal of 312223103112 is 211301322213.

It is a super-2 number, since 2×312223103112² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 360148 + ... + 868419.

It is an arithmetic number, because the mean of its divisors is an integer number (24394753350).

Almost surely, 2^312223103112 is an apocalyptic number.

It is an amenable number.

312223103112 is an abundant number, since it is smaller than the sum of its proper divisors (468409004088).

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

312223103112 is a wasteful number, since it uses less digits than its factorization.

312223103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239165 (or 1239161 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 312223103112 its reverse (211301322213), we get a palindrome (523524425325).

The spelling of 312223103112 in words is "three hundred twelve billion, two hundred twenty-three million, one hundred three thousand, one hundred twelve".