312223321112 has 16 divisors (see below), whose sum is σ = 585679758840. Its totient is φ = 156042052096.

The previous prime is 312223321099. The next prime is 312223321133. The reversal of 312223321112 is 211123322213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8681993 + ... + 8717880.

Almost surely, 2^312223321112 is an apocalyptic number.

It is an amenable number.

312223321112 is a deficient number, since it is larger than the sum of its proper divisors (273456437728).

312223321112 is a wasteful number, since it uses less digits than its factorization.

312223321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17402122 (or 17402118 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 312223321112 its reverse (211123322213), we get a palindrome (523346643325).

The spelling of 312223321112 in words is "three hundred twelve billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred twelve".