312223321111 has 16 divisors (see below), whose sum is σ = 339617698560. Its totient is φ = 285312211200.

The previous prime is 312223321099. The next prime is 312223321133. The reversal of 312223321111 is 111123322213.

It is a cyclic number.

It is not a de Polignac number, because 312223321111 - 2⁹ = 312223320599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223321211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13221931 + ... + 13245523.

It is an arithmetic number, because the mean of its divisors is an integer number (21226106160).

Almost surely, 2^312223321111 is an apocalyptic number.

312223321111 is a deficient number, since it is larger than the sum of its proper divisors (27394377449).

312223321111 is a wasteful number, since it uses less digits than its factorization.

312223321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33786.

The product of its digits is 432, while the sum is 22.

Adding to 312223321111 its reverse (111123322213), we get a palindrome (423346643324).

The spelling of 312223321111 in words is "three hundred twelve billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred eleven".