312213323 has 2 divisors, whose sum is σ = 312213324. Its totient is φ = 312213322.

The previous prime is 312213299. The next prime is 312213329. The reversal of 312213323 is 323312213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312213323 - 2¹⁸ = 311951179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312213295 and 312213304.

It is not a weakly prime, because it can be changed into another prime (312213329) 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 as a sum of consecutive naturals, namely, 156106661 + 156106662.

It is an arithmetic number, because the mean of its divisors is an integer number (156106662).

Almost surely, 2^312213323 is an apocalyptic number.

312213323 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213323 is an equidigital number, since it uses as much as digits as its factorization.

312213323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 312213323 is about 17669.5592191769. The cubic root of 312213323 is about 678.3968310358.

Adding to 312213323 its reverse (323312213), we get a palindrome (635525536).

The spelling of 312213323 in words is "three hundred twelve million, two hundred thirteen thousand, three hundred twenty-three".