381316211 has 2 divisors, whose sum is σ = 381316212. Its totient is φ = 381316210.

The previous prime is 381316183. The next prime is 381316219. The reversal of 381316211 is 112613183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381316211 - 2⁶ = 381316147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381316219) 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, 190658105 + 190658106.

It is an arithmetic number, because the mean of its divisors is an integer number (190658106).

Almost surely, 2^381316211 is an apocalyptic number.

381316211 is a deficient number, since it is larger than the sum of its proper divisors (1).

381316211 is an equidigital number, since it uses as much as digits as its factorization.

381316211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 381316211 is about 19527.3196061313. The cubic root of 381316211 is about 725.1509545362.

Adding to 381316211 its reverse (112613183), we get a palindrome (493929394).

The spelling of 381316211 in words is "three hundred eighty-one million, three hundred sixteen thousand, two hundred eleven".