312041971 has 2 divisors, whose sum is σ = 312041972. Its totient is φ = 312041970.

The previous prime is 312041969. The next prime is 312041993. The reversal of 312041971 is 179140213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312041971 - 2¹ = 312041969 is a prime.

Together with 312041969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (312041911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156020985 + 156020986.

It is an arithmetic number, because the mean of its divisors is an integer number (156020986).

Almost surely, 2^312041971 is an apocalyptic number.

312041971 is a deficient number, since it is larger than the sum of its proper divisors (1).

312041971 is an equidigital number, since it uses as much as digits as its factorization.

312041971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 312041971 is about 17664.7097626879. The cubic root of 312041971 is about 678.2727001741.

The spelling of 312041971 in words is "three hundred twelve million, forty-one thousand, nine hundred seventy-one".