312242011 has 2 divisors, whose sum is σ = 312242012. Its totient is φ = 312242010.

The previous prime is 312241973. The next prime is 312242033. The reversal of 312242011 is 110242213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312242011 - 2²¹ = 310144859 is a prime.

It is not a weakly prime, because it can be changed into another prime (312242081) 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, 156121005 + 156121006.

It is an arithmetic number, because the mean of its divisors is an integer number (156121006).

Almost surely, 2^312242011 is an apocalyptic number.

312242011 is a deficient number, since it is larger than the sum of its proper divisors (1).

312242011 is an equidigital number, since it uses as much as digits as its factorization.

312242011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 312242011 is about 17670.3709921439. The cubic root of 312242011 is about 678.4176087657.

Adding to 312242011 its reverse (110242213), we get a palindrome (422484224).

The spelling of 312242011 in words is "three hundred twelve million, two hundred forty-two thousand, eleven".