312213112222243 has 8 divisors (see below), whose sum is σ = 313092638293520. Its totient is φ = 311334239835360.

The previous prime is 312213112222241. The next prime is 312213112222279. The reversal of 312213112222243 is 342222211312213.

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 312213112222243 - 2¹ = 312213112222241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312213112222241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162464505 + ... + 164375002.

It is an arithmetic number, because the mean of its divisors is an integer number (39136579786690).

Almost surely, 2^{312213112222243} is an apocalyptic number.

312213112222243 is a deficient number, since it is larger than the sum of its proper divisors (879526071277).

312213112222243 is a wasteful number, since it uses less digits than its factorization.

312213112222243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326842197.

The product of its digits is 13824, while the sum is 31.

Adding to 312213112222243 its reverse (342222211312213), we get a palindrome (654435323534456).

The spelling of 312213112222243 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred twelve million, two hundred twenty-two thousand, two hundred forty-three".