312130283 has 2 divisors, whose sum is σ = 312130284. Its totient is φ = 312130282.

The previous prime is 312130223. The next prime is 312130327. The reversal of 312130283 is 382031213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312130283 - 2²⁰ = 311081707 is a prime.

It is not a weakly prime, because it can be changed into another prime (312130223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065141 + 156065142.

It is an arithmetic number, because the mean of its divisors is an integer number (156065142).

Almost surely, 2^312130283 is an apocalyptic number.

312130283 is a deficient number, since it is larger than the sum of its proper divisors (1).

312130283 is an equidigital number, since it uses as much as digits as its factorization.

312130283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 312130283 is about 17667.2092589633. The cubic root of 312130283 is about 678.3366808502.

Adding to 312130283 its reverse (382031213), we get a palindrome (694161496).

The spelling of 312130283 in words is "three hundred twelve million, one hundred thirty thousand, two hundred eighty-three".