312213299 has 2 divisors, whose sum is σ = 312213300. Its totient is φ = 312213298.

The previous prime is 312213269. The next prime is 312213323. The reversal of 312213299 is 992312213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312213299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (312213229) 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, 156106649 + 156106650.

It is an arithmetic number, because the mean of its divisors is an integer number (156106650).

Almost surely, 2^312213299 is an apocalyptic number.

312213299 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213299 is an equidigital number, since it uses as much as digits as its factorization.

312213299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 312213299 is about 17669.5585400428. The cubic root of 312213299 is about 678.3968136529.

The spelling of 312213299 in words is "three hundred twelve million, two hundred thirteen thousand, two hundred ninety-nine".