312011299 has 2 divisors, whose sum is σ = 312011300. Its totient is φ = 312011298.

The previous prime is 312011291. The next prime is 312011309. The reversal of 312011299 is 992110213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312011299 - 2³ = 312011291 is a prime.

It is not a weakly prime, because it can be changed into another prime (312011291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156005649 + 156005650.

It is an arithmetic number, because the mean of its divisors is an integer number (156005650).

Almost surely, 2^312011299 is an apocalyptic number.

312011299 is a deficient number, since it is larger than the sum of its proper divisors (1).

312011299 is an equidigital number, since it uses as much as digits as its factorization.

312011299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 312011299 is about 17663.8415697152. The cubic root of 312011299 is about 678.2504759609.

The spelling of 312011299 in words is "three hundred twelve million, eleven thousand, two hundred ninety-nine".