312311371 has 2 divisors, whose sum is σ = 312311372. Its totient is φ = 312311370.

The previous prime is 312311359. The next prime is 312311401. The reversal of 312311371 is 173113213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312311371 - 2⁷ = 312311243 is a prime.

It is not a weakly prime, because it can be changed into another prime (312311071) 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, 156155685 + 156155686.

It is an arithmetic number, because the mean of its divisors is an integer number (156155686).

Almost surely, 2^312311371 is an apocalyptic number.

312311371 is a deficient number, since it is larger than the sum of its proper divisors (1).

312311371 is an equidigital number, since it uses as much as digits as its factorization.

312311371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 22.

The square root of 312311371 is about 17672.3334905156. Note that the first 3 decimals coincide. The cubic root of 312311371 is about 678.4678385660.

Adding to 312311371 its reverse (173113213), we get a palindrome (485424584).

The spelling of 312311371 in words is "three hundred twelve million, three hundred eleven thousand, three hundred seventy-one".