312444311 has 2 divisors, whose sum is σ = 312444312. Its totient is φ = 312444310.

The previous prime is 312444229. The next prime is 312444323. The reversal of 312444311 is 113444213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312444311 is a prime.

It is a super-4 number, since 4×312444311⁴ (a number of 35 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312444331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156222155 + 156222156.

It is an arithmetic number, because the mean of its divisors is an integer number (156222156).

Almost surely, 2^312444311 is an apocalyptic number.

312444311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312444311 is an equidigital number, since it uses as much as digits as its factorization.

312444311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 312444311 is about 17676.0943367023. The cubic root of 312444311 is about 678.5640915666.

Adding to 312444311 its reverse (113444213), we get a palindrome (425888524).

The spelling of 312444311 in words is "three hundred twelve million, four hundred forty-four thousand, three hundred eleven".