312213023 has 2 divisors, whose sum is σ = 312213024. Its totient is φ = 312213022.

The previous prime is 312213001. The next prime is 312213029. The reversal of 312213023 is 320312213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312213023 - 2¹⁶ = 312147487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312212992 and 312213010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312213029) 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, 156106511 + 156106512.

It is an arithmetic number, because the mean of its divisors is an integer number (156106512).

Almost surely, 2^312213023 is an apocalyptic number.

312213023 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213023 is an equidigital number, since it uses as much as digits as its factorization.

312213023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 312213023 is about 17669.5507299988. The cubic root of 312213023 is about 678.3966137494.

Adding to 312213023 its reverse (320312213), we get a palindrome (632525236).

The spelling of 312213023 in words is "three hundred twelve million, two hundred thirteen thousand, twenty-three".