312223221113 has 8 divisors (see below), whose sum is σ = 313113850056. Its totient is φ = 311333299200.

The previous prime is 312223221091. The next prime is 312223221119. The reversal of 312223221113 is 311122322213.

It can be written as a sum of positive squares in 4 ways, for example, as 19112509504 + 293110711609 = 138248^2 + 541397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312223221113 - 2¹⁴ = 312223204729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312223221119) by changing a digit.

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, 714083 + ... + 1065063.

It is an arithmetic number, because the mean of its divisors is an integer number (39139231257).

Almost surely, 2^312223221113 is an apocalyptic number.

It is an amenable number.

312223221113 is a deficient number, since it is larger than the sum of its proper divisors (890628943).

312223221113 is a wasteful number, since it uses less digits than its factorization.

312223221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353515.

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

Adding to 312223221113 its reverse (311122322213), we get a palindrome (623345543326).

The spelling of 312223221113 in words is "three hundred twelve billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred thirteen".