312471311 has 2 divisors, whose sum is σ = 312471312. Its totient is φ = 312471310.

The previous prime is 312471293. The next prime is 312471323. The reversal of 312471311 is 113174213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312471311 - 2¹⁰ = 312470287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312471361) 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, 156235655 + 156235656.

It is an arithmetic number, because the mean of its divisors is an integer number (156235656).

Almost surely, 2^312471311 is an apocalyptic number.

312471311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312471311 is an equidigital number, since it uses as much as digits as its factorization.

312471311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 23.

The square root of 312471311 is about 17676.8580635813. The cubic root of 312471311 is about 678.5836371327.

The spelling of 312471311 in words is "three hundred twelve million, four hundred seventy-one thousand, three hundred eleven".