312212330233 has 4 divisors (see below), whose sum is σ = 328644558160. Its totient is φ = 295780102308.

The previous prime is 312212330231. The next prime is 312212330263. The reversal of 312212330233 is 332033212213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332033212213 = 96581 ⋅3437873.

It is a cyclic number.

It is not a de Polignac number, because 312212330233 - 2¹ = 312212330231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312212330198 and 312212330207.

It is not an unprimeable number, because it can be changed into a prime (312212330231) 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 3 ways as a sum of consecutive naturals, for example, 8216113935 + ... + 8216113972.

It is an arithmetic number, because the mean of its divisors is an integer number (82161139540).

Almost surely, 2^312212330233 is an apocalyptic number.

It is an amenable number.

312212330233 is a deficient number, since it is larger than the sum of its proper divisors (16432227927).

312212330233 is a wasteful number, since it uses less digits than its factorization.

312212330233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16432227926.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312212330233 its reverse (332033212213), we get a palindrome (644245542446).

The spelling of 312212330233 in words is "three hundred twelve billion, two hundred twelve million, three hundred thirty thousand, two hundred thirty-three".